Here is a copy of my log when I get the error (sorry for the long post, but I don't know the relevant parts to keep):
2007-10-24T01:16:45Z INFO: another_instance_running: Checking marker file for lock...
2007-10-24T01:16:45Z INFO: another_instance_running: Marker file isn't locked.
2007-10-24T01:16:45Z INFO: init_marker_file: Checking marker file for lock...
2007-10-24T01:16:45Z INFO: init_marker_file: Marker file created.
2007-10-24T01:16:45Z INFO: init_marker_file: Removing message.log
2007-10-24T01:16:45Z INFO: Exiting init_marker_file().
2007-10-24T01:16:45Z INFO: write_debug: Opening debug file /root/.secondlife/logs/debug_info.log
2007-10-24T01:16:45Z INFO: write_system_info: Second Life version 1.18.3
2007-10-24T01:16:45Z INFO: write_system_info: Local time: 2007-10-23T21:16:45 EDT
2007-10-24T01:16:45Z INFO: write_system_info: CPU info:
processor : 0 vendor_id : GenuineIntel cpu family : 15 model : 3 model name : Intel(R) Pentium(R) 4 CPU 3.00GHz stepping : 3 cpu MHz : 2998.654 cache size : 1024 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 1 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe constant_tsc pni monitor ds_cpl cid bogomips : 5999.86 clflush size : 64 processor : 1 vendor_id : GenuineIntel cpu family : 15 model : 3 model name : Intel(R) Pentium(R) 4 CPU 3.00GHz stepping : 3 cpu MHz : 2998.654 cache size : 1024 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 1 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe constant_tsc pni monitor ds_cpl cid bogomips : 5996.27 clflush size : 64
->mHasSSE: 1
->mHasSSE2: 1
->mHasAltivec: 0
->mCPUMhz: 2999
->mCPUString: Intel(R) Pentium(R) 4 CPU 3.00GHz
2007-10-24T01:16:45Z INFO: write_system_info: Memory info:
MemTotal: 2074560 kB MemFree: 903872 kB Buffers: 97176 kB Cached: 768000 kB SwapCached: 0 kB Active: 536252 kB Inactive: 550624 kB HighTotal: 1178816 kB HighFree: 179976 kB LowTotal: 895744 kB LowFree: 723896 kB SwapTotal: 2031608 kB SwapFree: 2031608 kB Dirty: 260 kB Writeback: 0 kB AnonPages: 221676 kB Mapped: 75368 kB Slab: 58856 kB SReclaimable: 48216 kB SUnreclaim: 10640 kB PageTables: 4280 kB NFS_Unstable: 0 kB Bounce: 0 kB CommitLimit: 3068888 kB Committed_AS: 551984 kB VmallocTotal: 114680 kB VmallocUsed: 8668 kB VmallocChunk: 104948 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 Hugepagesize: 4096 kB
2007-10-24T01:16:45Z INFO: write_system_info: OS info: Linux 2.6.22.9-91.fc7 #1 SMP Thu Sep 27 23:10:59 EDT 2007 i686
2007-10-24T01:16:45Z INFO: main: Loading feature tables.
2007-10-24T01:16:45Z INFO: main: Loading configuration file /root/.secondlife/user_settings/settings_default.xml
2007-10-24T01:16:45Z INFO: main: Loading art table from /root/secondlife/SecondLife_i686_1_18_3_5/app_settings/viewerart.xml
2007-10-24T01:16:45Z INFO: main: Loading art table from /root/secondlife/SecondLife_i686_1_18_3_5/skins/textures/textures.xml
2007-10-24T01:16:45Z INFO: main: Loading base colors from /root/secondlife/SecondLife_i686_1_18_3_5/app_settings/colors_base.xml
2007-10-24T01:16:45Z INFO: main: Loading user colors from /root/secondlife/SecondLife_i686_1_18_3_5/app_settings/colors.xml
2007-10-24T01:16:45Z INFO: main: Failed to load user colors from /root/secondlife/SecondLife_i686_1_18_3_5/app_settings/colors.xml
2007-10-24T01:16:45Z INFO: main: Loading legacy colors from /root/secondlife/SecondLife_i686_1_18_3_5/app_settings/colors.ini
2007-10-24T01:16:45Z INFO: update_vector_performances: Vectorization : DISABLED
2007-10-24T01:16:45Z INFO: update_vector_performances: Vector Processor : COMPILER DEFAULT
2007-10-24T01:16:45Z INFO: update_vector_performances: Vectorized Skinning : DISABLED
2007-10-24T01:16:45Z INFO: initCache: TEXTURE CACHE: Headers: 139810 Textures size: 320 MB
2007-10-24T01:16:45Z INFO: purgeTextures: TEXTURE CACHE: Reading Entries...
2007-10-24T01:16:45Z INFO: purgeTextures: TEXTURE CACHE: Validating: 116
2007-10-24T01:16:45Z INFO: purgeTextures: TEXTURE CACHE: Writing Entries: 1029
2007-10-24T01:16:45Z INFO: purgeTextures: TEXTURE CACHE: PURGED: 0 ENTRIES: 1029 CACHE SIZE: 16977920 MB
2007-10-24T01:16:45Z INFO: init_cache: VFS CACHE SIZE: 100 MB
2007-10-24T01:16:45Z INFO: init_cache: Renaming /root/.secondlife/cache/data.db2.x.1252089182 to /root/.secondlife/cache/data.db2.x.1243757138
2007-10-24T01:16:45Z INFO: init_cache: Renaming /root/.secondlife/cache/index.db2.x.1252089182 to /root/.secondlife/cache/index.db2.x.1243757138
2007-10-24T01:16:45Z INFO: LLVFS: VFS: Using index file /root/.secondlife/cache/index.db2.x.1243757138 and data file /root/.secondlife/cache/data.db2.x.1243757138
2007-10-24T01:16:45Z INFO: LLVFS: VFS: Using index file /root/secondlife/SecondLife_i686_1_18_3_5/app_settings/static_index.db2 and data file /root/secondlife/SecondLife_i686_1_18_3_5/app_settings/static_data.db2
2007-10-24T01:16:45Z INFO: main: Initializing window...
2007-10-24T01:16:45Z INFO: ll_try_gtk_init: Starting GTK Initialization.
2007-10-24T01:16:45Z INFO: ll_try_gtk_init: GTK Initialized.
2007-10-24T01:16:45Z INFO: ll_try_gtk_init: - Compiled against GTK version 2.4.14
2007-10-24T01:16:45Z INFO: ll_try_gtk_init: - Running against GTK version 2.10.14
2007-10-24T01:16:45Z INFO: createContext, fullscreen=0 size=1280x949
2007-10-24T01:16:45Z INFO: createContext: Compiled against SDL 1.2.5
2007-10-24T01:16:45Z INFO: createContext: Running against SDL 1.2.12
2007-10-24T01:16:45Z INFO: createContext: creating window 1280x949x32
2007-10-24T01:16:45Z INFO: x11_detect_VRAM_kb: Looking in /var/log/Xorg.0.log for VRAM info...
2007-10-24T01:16:45Z INFO: createContext: GL buffer:
2007-10-24T01:16:45Z INFO: createContext: Red Bits 8
2007-10-24T01:16:45Z INFO: createContext: Green Bits 8
2007-10-24T01:16:45Z INFO: createContext: Blue Bits 8
2007-10-24T01:16:45Z INFO: createContext: Alpha Bits 8
2007-10-24T01:16:45Z INFO: createContext: Depth Bits 24
2007-10-24T01:16:45Z INFO: createContext: Stencil Bits 0
2007-10-24T01:16:45Z WARNING: initExtensions: GL extension support forced to SIMPLE level via LL_GL_BASICEXT
2007-10-24T01:16:45Z INFO: initExtensions: Couldn't initialize mipmap generation
2007-10-24T01:16:45Z INFO: initExtensions: Couldn't initialize GL_EXT_paletted_texture
2007-10-24T01:16:45Z INFO: initExtensions: Couldn't initialize anisotropic filtering
2007-10-24T01:16:45Z INFO: initExtensions: Couldn't initialize GL_ARB_occlusion_query
2007-10-24T01:16:45Z INFO: initExtensions: Couldn't initialize GL_ARB_point_parameters
2007-10-24T01:16:45Z INFO: initExtensions: Couldn't initialize GL_ARB_shader_objects
2007-10-24T01:16:45Z INFO: initExtensions: Couldn't initialize GL_ARB_vertex_shader
2007-10-24T01:16:45Z INFO: initExtensions: Couldn't initialize GL_ARB_fragment_shader
2007-10-24T01:16:45Z INFO: initExtensions: GL Probe: Getting symbols
2007-10-24T01:16:45Z INFO: initExtensions: GL Probe: Got symbols
2007-10-24T01:16:45Z INFO: loadGPUClass: GPU is Tungsten Graphics
2007-10-24T01:16:45Z INFO: initGraphicsFeatureMasks: Setting GPU Class to Class0
2007-10-24T01:16:45Z INFO: maskFeatures: Applying Feature Mask: Class0
2007-10-24T01:16:45Z INFO: maskFeatures: Applying Feature Mask: NoPixelShaders
2007-10-24T01:16:45Z INFO: maskFeatures: Applying Feature Mask: NoVertexShaders
2007-10-24T01:16:45Z INFO: maskFeatures: Applying Feature Mask: OpenGLPre15
2007-10-24T01:16:45Z INFO: saveToFile: Saving settings to file: /root/.secondlife/user_settings/settings_default.xml
2007-10-24T01:16:45Z INFO: saveToFile: Saving settings to file: /root/.secondlife/user_settings/settings_default.xml
2007-10-24T01:16:45Z WARNING: LLViewerImageList::getMaxVideoRamSetting: VRAM amount not detected, defaulting to 512 MB
2007-10-24T01:16:45Z INFO: LLViewerImageList::doPreloadImages: Preloading images...
2007-10-24T01:16:46Z WARNING: loadFaceFallback: Couldn't load font unicode.ttf
2007-10-24T01:16:46Z WARNING: loadFaceFallback: Couldn't load font unicode.ttf
2007-10-24T01:16:46Z WARNING: loadFaceFallback: Couldn't load font unicode.ttf
2007-10-24T01:16:46Z WARNING: loadFaceFallback: Couldn't load font unicode.ttf
2007-10-24T01:16:46Z WARNING: loadFaceFallback: Couldn't load font unicode.ttf
2007-10-24T01:16:46Z INFO: main: GL_VENDOR Tungsten Graphics, Inc.
GL_RENDERER Mesa DRI R300 20060815 AGP 1x x86/MMX/SSE2 TCL
GL_VERSION 1.3 Mesa 6.5.2
GL_EXTENSIONS:
GL_ARB_fragment_program
GL_ARB_imaging
GL_ARB_multisample
GL_ARB_multitexture
GL_ARB_texture_border_clamp
GL_ARB_texture_compression
GL_ARB_texture_cube_map
GL_ARB_texture_env_add
GL_ARB_texture_env_combine
GL_ARB_texture_env_crossbar
GL_ARB_texture_env_dot3
GL_MESAX_texture_float
GL_ARB_texture_mirrored_repeat
GL_ARB_texture_rectangle
GL_ARB_transpose_matrix
GL_ARB_vertex_buffer_object
GL_ARB_vertex_program
GL_ARB_window_pos
GL_EXT_abgr
GL_EXT_bgra
GL_EXT_blend_color
GL_EXT_blend_equation_separate
GL_EXT_blend_func_separate
GL_EXT_blend_minmax
GL_EXT_blend_subtract
GL_EXT_clip_volume_hint
GL_EXT_compiled_vertex_array
GL_EXT_convolution
GL_EXT_copy_texture
GL_EXT_draw_range_elements
GL_EXT_gpu_program_parameters
GL_EXT_histogram
GL_EXT_packed_pixels
GL_EXT_polygon_offset
GL_EXT_rescale_normal
GL_EXT_secondary_color
GL_EXT_separate_specular_color
GL_EXT_stencil_wrap
GL_EXT_subtexture
GL_EXT_texture
GL_EXT_texture3D
GL_EXT_texture_edge_clamp
GL_EXT_texture_env_add
GL_EXT_texture_env_combine
GL_EXT_texture_env_dot3
GL_EXT_texture_filter_anisotropic
GL_EXT_texture_lod_bias
GL_EXT_texture_mirror_clamp
GL_EXT_texture_object
GL_EXT_texture_rectangle
GL_EXT_vertex_array
GL_APPLE_packed_pixels
GL_ATI_blend_equation_separate
GL_ATI_texture_env_combine3
GL_ATI_texture_mirror_once
GL_IBM_rasterpos_clip
GL_IBM_texture_mirrored_repeat
GL_INGR_blend_func_separate
GL_MESA_pack_invert
GL_MESA_ycbcr_texture
GL_MESA_window_pos
GL_NV_blend_square
GL_NV_light_max_exponent
GL_NV_texture_rectangle
GL_NV_texgen_reflection
GL_NV_vertex_program
GL_OES_read_format
GL_SGI_color_matrix
GL_SGI_color_table
GL_SGIS_generate_mipmap
GL_SGIS_texture_border_clamp
GL_SGIS_texture_edge_clamp
GL_SGIS_texture_lod
2007-10-24T01:16:46Z INFO: main: Viewer Digest: f32fda1e-9085-839a-3f2d-41693bfcbf66
2007-10-24T01:16:46Z INFO: LLVoiceClient:

2007-10-24T01:16:46Z INFO: LLVoiceClient:

2007-10-24T01:16:46Z INFO: dump: Resend: 75
2007-10-24T01:16:46Z INFO: dump: Land: 85
2007-10-24T01:16:46Z INFO: dump: Wind: 17
2007-10-24T01:16:46Z INFO: dump: Cloud: 17
2007-10-24T01:16:46Z INFO: dump: Task: 223
2007-10-24T01:16:46Z INFO: dump: Texture: 223
2007-10-24T01:16:46Z INFO: dump: Asset: 110
2007-10-24T01:16:46Z INFO: dump: Total: 750
2007-10-24T01:16:46Z INFO: idle_startup: Initializing messaging system...
2007-10-24T01:16:46Z INFO: LLTemplateParser: ### Message template version 2 ###
2007-10-24T01:16:46Z INFO: start_net: startNet - receive buffer size : 262142
2007-10-24T01:16:46Z INFO: start_net: startNet - send buffer size : 262142
2007-10-24T01:16:46Z INFO: start_messaging_system: Message template version matches prehash version number
2007-10-24T01:16:46Z INFO: loadFile: Loading message.xml file at /root/secondlife/SecondLife_i686_1_18_3_5/app_settings/message.xml
2007-10-24T01:16:46Z INFO: LLMessageConfigFile::loadCapBans: 22 ban tests
2007-10-24T01:16:46Z INFO: LLMessageSystem:

2007-10-24T01:16:46Z INFO: setMessageBans: no messages banned
2007-10-24T01:16:46Z INFO: LLMessageConfig::initClass config file /root/secondlife/SecondLife_i686_1_18_3_5/app_settings/message.xml
2007-10-24T01:16:46Z INFO: setAckThrottleBPS: LLXferManager ack throttle min rate: 2.66667e+06
2007-10-24T01:16:46Z INFO: setAckThrottleBPS: LLXferManager ack throttle actual rate: 2.93333e+06
2007-10-24T01:16:46Z INFO: setAckThrottleBPS: LLXferManager ack throttle min rate: 8000
2007-10-24T01:16:46Z INFO: setAckThrottleBPS: LLXferManager ack throttle actual rate: 150000
2007-10-24T01:16:46Z INFO: setUpstream: AssetStorage: Setting upstream provider to 0.0.0.0:0
2007-10-24T01:16:46Z INFO: idle_startup: Initializing embedded web browser...
2007-10-24T01:16:46Z INFO: LLAudioEngine_FMOD::init() initializing FMOD
2007-10-24T01:16:46Z INFO: init: Trying ESD audio output...
2007-10-24T01:16:55Z WARNING: ESD audio output FAILED to initialize: Error initializing output device.
2007-10-24T01:16:55Z INFO: init: Trying OSS audio output...
2007-10-24T01:16:55Z INFO: OSS audio output initialized OKAY
2007-10-24T01:16:55Z INFO: init: Audio output: OSS
2007-10-24T01:16:55Z INFO: LLAudioEngine_FMOD::init() FMOD initialized correctly
2007-10-24T01:16:55Z INFO: setStartupState: Startup state changing from 0 to 1
2007-10-24T01:16:55Z INFO: idle_startup: Initializing Window
2007-10-24T01:16:55Z INFO: login_show: Initializing Login Screen
2007-10-24T01:16:56Z INFO: login_show: Decoding Images
2007-10-24T01:16:56Z INFO: login_show: Setting Servers
2007-10-24T01:16:56Z INFO: setStartupState: Startup state changing from 1 to 2
2007-10-24T01:17:11Z INFO: setStartupState: Startup state changing from 2 to 3
2007-10-24T01:17:11Z INFO: idle_startup: Attempting login as: Morbid Blackadder
2007-10-24T01:17:11Z INFO: dumpCurrentDirectories: Current Directories:
2007-10-24T01:17:11Z INFO: dumpCurrentDirectories: CurPath: /root/secondlife/SecondLife_i686_1_18_3_5
2007-10-24T01:17:11Z INFO: dumpCurrentDirectories: AppName: SecondLife
2007-10-24T01:17:11Z INFO: dumpCurrentDirectories: ExecutableFilename: do-not-directly-run-secondlife-bin
2007-10-24T01:17:11Z INFO: dumpCurrentDirectories: ExecutableDir: /root/secondlife/SecondLife_i686_1_18_3_5/bin
2007-10-24T01:17:11Z INFO: dumpCurrentDirectories: ExecutablePathAndName: /root/secondlife/SecondLife_i686_1_18_3_5/bin/do-not-directly-run-secondlife-bin
2007-10-24T01:17:11Z INFO: dumpCurrentDirectories: WorkingDir: /root/secondlife/SecondLife_i686_1_18_3_5/bin
2007-10-24T01:17:11Z INFO: dumpCurrentDirectories: AppRODataDir: /root/secondlife/SecondLife_i686_1_18_3_5
2007-10-24T01:17:11Z INFO: dumpCurrentDirectories: OSUserDir: /root
2007-10-24T01:17:11Z INFO: dumpCurrentDirectories: OSUserAppDir: /root/.secondlife
2007-10-24T01:17:11Z INFO: dumpCurrentDirectories: LindenUserDir: /root/.secondlife/morbid_blackadder
2007-10-24T01:17:11Z INFO: dumpCurrentDirectories: TempDir: /tmp
2007-10-24T01:17:11Z INFO: dumpCurrentDirectories: CAFile: /root/secondlife/SecondLife_i686_1_18_3_5/app_settings/CA.pem
2007-10-24T01:17:11Z INFO: dumpCurrentDirectories: SkinDir:
2007-10-24T01:17:11Z WARNING: parseFile: Couldn't open file /root/.secondlife/morbid_blackadder/overrides.xml
2007-10-24T01:17:11Z WARNING: parseFile: LLXmlTree parse failed. Line 1: Couldn't open file /root/.secondlife/morbid_blackadder/overrides.xml
2007-10-24T01:17:11Z WARNING: loadFromFile: Unable to open control file /root/.secondlife/morbid_blackadder/overrides.xml
2007-10-24T01:17:11Z INFO: init_start_screen: Loading startup bitmap...
2007-10-24T01:17:12Z INFO: setStartupState: Startup state changing from 3 to 5
2007-10-24T01:17:12Z INFO: rewriteURI: Rewriting https://login.agni.lindenlab.com/cgi-bin/login.cgi
2007-10-24T01:17:12Z INFO: rewriteURI: Querying for _https._tcp.login.agni.lindenlab.com
2007-10-24T01:17:14Z INFO: query: Query failed for _https._tcp.login.agni.lindenlab.com
2007-10-24T01:17:14Z INFO: rewriteURI: No query results; using https://login.agni.lindenlab.com/cgi-bin/login.cgi
2007-10-24T01:17:14Z INFO: setStartupState: Startup state changing from 5 to 6
2007-10-24T01:17:14Z INFO: authenticate: Authenticating: Morbid Blackadder,
2007-10-24T01:17:14Z INFO: authenticate: Options: inventory-root, inventory-skeleton, inventory-lib-root, inventory-lib-owner, inventory-skel-lib, initial-outfit, gestures, event_categories, event_notifications, classified_categories, buddy-list, ui-config, login-flags, global-textures, END
2007-10-24T01:17:14Z INFO: LLUserAuth::authenticate: uri=https://login.agni.lindenlab.com/cgi-bin/login.cgi
2007-10-24T01:17:14Z INFO: setStartupState: Startup state changing from 6 to 7
2007-10-24T01:17:18Z WARNING: process: LLXMLRPCTransaction CURL error 6: Could not resolve host: login.agni.lindenlab.com (Domain name not found)
2007-10-24T01:17:18Z WARNING: process: LLXMLRPCTransaction request URI: https://login.agni.lindenlab.com/cgi-bin/login.cgi
2007-10-24T01:17:18Z INFO: authResponse: Processed response: 6
2007-10-24T01:17:18Z INFO: setStartupState: Startup state changing from 7 to 8
2007-10-24T01:17:18Z INFO: setStartupState: Startup state changing from 8 to 9
2007-10-24T01:17:18Z WARNING: createXml: Alert: [ErrorMessage]
2007-10-24T01:17:18Z WARNING: createDialog: Alert: Unable to connect to Second Life.
DNS could not resolve the host name.
Please verify that you can connect to the www.secondlife.com
web site. If you can, but continue to receive this error,
please go to the support section and report this problem.
2007-10-24T01:17:18Z INFO: setStartupState: Startup state changing from 9 to 1
2007-10-24T01:17:18Z INFO: idle_startup: Initializing Window
2007-10-24T01:17:18Z INFO: login_show: Initializing Login Screen
2007-10-24T01:17:18Z INFO: login_show: Decoding Images
2007-10-24T01:17:18Z INFO: login_show: Setting Servers
2007-10-24T01:17:18Z INFO: setStartupState: Startup state changing from 1 to 2
Anyone have any comments or suggestions?
Thanks for any help you could provide!