The client crashes under version 1.18.3.5 while logging in to SL.
Error Messages:
2007-09-22T09:41:54Z i686-linux-client-releasefordownload/llrender/llimagegl.cpp(325) : error
2007-09-22T09:41:54Z ERROR: setSize: Texture has non power of two dimention: 192x192
[FIX]
cd /home/<insert your username>/.secondlife/user_settings
mv settings_releasecandidate.xml ~settings_releasecandidate.bak
This will force the client to generate a new settings_releasecandidate.xml file and allow you to log in.