I had thought I was starting to see kernel panics on my Ti400 (running 10.3.5), and this was confirmed by a Knowledgebase article which includes the following text: The Article goes on to describe how to find the kernel panic log on the computer, but I was frequently unable to find one. Strange. What was happening is that my entire system would freeze up, particularly when loading complex web pages. I could move the mouse around, but no amount of clicking would generate a result. After reinstalling the system (and eventually reverting to 10.3.4), I noticed this same behavior, but sometimes it would only last a second or two, and then everything would start working again. Was this all that was happening when my system was "crashing" before? Just this morning, I had another "stutter," but after ten or fifteen seconds, it still wouldn't return to normal functioning. I thought about restarting, but then I decided to just leave the computer for a few minutes and see what happened. Amazingly, after a couple minutes, it was working perfectly again. So it seems that I probably was never experiencing a kernel panic all along, just a "stutter." Anyone else having this experience? Anyone know of a solution?