Im also getting an Error witht he latest Second Life Update Viewer, I updated from 280.26 to 285.62.
Either one of the updates works, because when i start SL, i click log in, and the moment its about to, i get a black screen for a few seconds, then i get a Nvidia OpenGL Crash, stating Error Code 7... **Only uploaded images may be used in postings**://secondlife.i.lithium.com/i/smilies/16x16_smiley-sad.gif" border="0" alt=":smileysad:" title="Smiley Sad" />
Edit: I also tried bringing the Graphic Settings from Ultra ( which i've always used without problems before the update) and i brought it down to Low, SL started right up! wtf... so i went into the settings while in SL, and changed it back to Ultra with all High, and SL is still playable without any crashes or nothing.
Then i went, and Restarted SL with the settings in Ultra to see if i get the error which crashes SL once again.. and try to start it like this again, i get the error once more... well i though it was an Nvidia Problem.. but it seems to be just that Second Life Needs some OpenGL updates to 4.2? only way to get to SL at the moment, is Brining the graphic settings to LOW, then bring it to Ultra while the viewer has launched... apperently darn it, doing the change from Low to Ultra, or any of them, brings me to a new error+crash Error Code 8
Also went trying to send the Report of Crash Logger, it crashes! It says " Win_crash_logger.exe stopped working"