I've been using Macs for 12 years, OSX for almost three, and I've never experienced anything like this: I was logging onto AOL (yeah, I know. . . ) when the message "Exception state (sv=0x00336230) previously dumped as 'Latest' state, skipping..." repeated itself down the screen. It didn't come up as an error box-- it just wrote in white letters across everything. When it reached the bottom of the screen, my entire desktop shifted upward until the screen was black, with the same error message repeating ad infinitum. I was able to reboot with ctrl+cmd+power, and everything seems to be working now. I'm wondering: -Has anyone else seen this? -What happened? -How do I prevent it from happening again? I'm using a 1GHz 12" PB, 512 MB RAM, OS 10.3.5, no updates/installations within the last few days. I had Excel, Firefox, and probably Word running in the background. Any ideas?