So, like the title explains, whenever I log in to windows XP, it immediately restarts. The problem started today when I went onto my Windows partition for the first time in about 5 days. Prior to this, I had installed Leopard back when it was released (I pre-ordered it) and it worked fine. I had run software updates, switched back and forth between mac and windows, and had no problems whatsoever. But today, when I log in to Windows, it immediately shuts down. I had run a software update yesterday, so I am not sure if that had something in it that caused windows to act so randomly. Any advice on how to fix this would be great. I have a MacBook Pro, 2gb RAM, 2Ghz Processor, Windows XP SP2.