crash without error

what can I do..? after these messages it simply stops and comes back to the prompt. No windows opened. my sistem is Fedora Core 4 with KDE. Video drivers by nvidia.
thank you very much for any help.

$ ./secondlife
2006-02-09T20:13:46Z WARNING: LLDir_Linux not fully implemented!
2006-02-09T20:13:46Z INFO: Checking marker file for lock...
2006-02-09T20:13:46Z INFO: Marker file isn't locked.
2006-02-09T20:13:46Z INFO: Checking marker file for lock...
2006-02-09T20:13:46Z INFO: Exec marker found: program froze on previous execution
2006-02-09T20:13:46Z INFO: Marker file created.
2006-02-09T20:13:46Z INFO: Removing message.log
2006-02-09T20:13:46Z INFO: Exiting init_marker_file().
2006-02-09T20:13:46Z INFO: Last execution froze, requesting to send crash report.
2006-02-09T20:13:46Z WARNING: OSMessageBox: Second Life appears to have frozen or crashed on the previous run.
2006-02-09T20:13:46Z Would you like to send a crash report?
2006-02-09T20:13:46Z INFO: Not sending crash report.
2006-02-09T20:13:46Z INFO: Opening debug file /home/enry/Desktop/SecondLife-linux-02072006/SecondLife/logs/debug_info.log
2006-02-09T20:13:46Z INFO: Second Life version 1.8.3
2006-02-09T20:13:46Z INFO: Local time: 2006-02-09T21:13:46 CET
2006-02-09T20:13:46Z INFO: CPU info:
2006-02-09T20:13:46Z processor : 0 vendor_id : AuthenticAMD cpu family : 15 model : 31 model name : AMD Athlon(tm) 64 Processor 3200+ stepping : 0 cpu MHz : 1000.064 cache size : 512 KB fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt lm 3dnowext 3dnow lahf_lm bogomips: 1957.88 TLB size : 1024 4K pages clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: ts fid vid ttp
2006-02-09T20:13:46Z INFO: Memory info:
2006-02-09T20:13:46Z MemTotal: 1025052 kB MemFree: 11312 kB Buffers: 11888 kB Cached: 646900 kB SwapCached: 108 kB Active: 515172 kB Inactive: 418996 kB HighTotal: 0 kB HighFree: 0 kB LowTotal: 1025052 kB LowFree: 11312 kB SwapTotal: 1124540 kB SwapFree: 1124432 kB Dirty: 13792 kB Writeback: 4 kB Mapped: 330448 kB Slab: 44388 kB CommitLimit: 1637064 kB Committed_AS: 576284 kB PageTables: 13840 kB VmallocTotal: 34359738367 kB VmallocUsed: 35400 kB VmallocChunk: 34359696891 kB HugePages_Total: 0 HugePages_Free: 0 Hugepagesize: 2048 kB
2006-02-09T20:13:46Z INFO: OS info: Linux 2.6.11-1.1369_FC4 #1 Thu Jun 2 22:56:33 EDT 2005 x86_64
2006-02-09T20:13:46Z INFO: Loading feature tables.
2006-02-09T20:13:46Z INFO: Using configuration file /home/enry/Desktop/SecondLife-linux-02072006/SecondLife/user_settings/settings.ini
2006-02-09T20:13:46Z INFO: LLControlGroup::loadFromFile unable to open.
2006-02-09T20:13:46Z INFO: LLControlGroup::loadFromFile unable to open.
2006-02-09T20:13:46Z INFO: Loading art table from viewerart.ini
2006-02-09T20:13:47Z INFO: Loading base colors from colors_base.ini
2006-02-09T20:13:47Z INFO: Loading user colors from colors.ini
2006-02-09T20:13:47Z INFO: Default vfs data file not present, found /home/enry/Desktop/SecondLife-linux-02072006/SecondLife/cache/.
2006-02-09T20:13:47Z INFO: Old salt: 1
2006-02-09T20:13:47Z WARNING: Bad or missing vfx index file /home/enry/Desktop/SecondLife-linux-02072006/SecondLife/cache/index.db2.x.1
2006-02-09T20:13:47Z WARNING: Removing old vfs data file /home/enry/Desktop/SecondLife-linux-02072006/SecondLife/cache/.
2006-02-09T20:13:47Z INFO: Renaming /home/enry/Desktop/SecondLife-linux-02072006/SecondLife/cache/. to /home/enry/Desktop/SecondLife-linux-02072006/SecondLife/cache/data.db2.x.1196218912
2006-02-09T20:13:47Z INFO: Renaming /home/enry/Desktop/SecondLife-linux-02072006/SecondLife/cache/index.db2.x.1 to /home/enry/Desktop/SecondLife-linux-02072006/SecondLife/cache/index.db2.x.1196218912
2006-02-09T20:13:47Z INFO: Pre-sized VFS data file to 524288000 bytes
2006-02-09T20:13:47Z INFO: VFS: Using index file /home/enry/Desktop/SecondLife-linux-02072006/SecondLife/cache/index.db2.x.1196218912 and data file /home/enry/Desktop/SecondLife-linux-02072006/SecondLife/cache/data.db2.x.1196218912
2006-02-09T20:13:47Z INFO: VFS: Using index file /home/enry/Desktop/SecondLife-linux-02072006/app_settings/static_index.db2 and data file /home/enry/Desktop/SecondLife-linux-02072006/app_settings/static_data.db2
2006-02-09T20:13:47Z INFO: Initializing window...

Judging by the moment of crash, looks most likely to be a problem with OpenGL. First verify that your OpenGL setup generally works okay for games (i.e. with the linux Quake3/Quake4 demo, Enemy Territory, Neverwinter Nights or a free OpenGL game, that sort of thing).