This has happened three times: once yesterday and two times today. Here are the specs: C2D MBP 2.16 2.0 GB Ram 120 GB HDD. Plugged in to a Dell 20.1" Widescreen display and the display's USB hub with a Logitech mouse. The first time I had yahoo messenger running in Windows XP and I went to adjust the brightness of the laptop's screen and my MBP rebooted in to OS X. The second and third time I was playing Medieval Total War II (sweet game by the way) and the game locks up for about 5 seconds then reboots to the white apple screen. Now this hasn't happened before and I just loaded MTWII yesterday so maybe it has something to do with that, but I'm wondering if this has happened to any one else. It's pretty annoying. As long as this isn't happening in OS X, Apple doesn't care because with boot camp, they don't provide support when using Windows XP (if i remember correctly). So, any thoughts?