Several Mac users are reporting that Mac OS 10.6 (as well as 10.6.1) will spontaneously log out of their account in the middle of using applications. The issue does not appear to be related to specific applications running as users have reported it happening while using Excel, Word, Safari, Photoshop, and Filemaker Pro among others. Most guesses have the problem related to Rosetta running on the new operating system, though an official fix has yet to be reported.