I've been running 64 bit on Linux for a while now. It will crash if you don't have the patches for Second Life. Some of my patches have been included already, they aren't specific to Linux. You'll want to look at jira VWR-123 to get OpenJPEG up to speed and other fixes. -- David Fries <david at fries.net> http://fries.net/~david/ (PGP encryption key available)