After installing SP1 I have noticed that my system usualy locks up while playing videos (almost always Divx). First the mouse and keyboard lock up, and windows boots the lowest resolution possible in 8 bit color and says one of my device drivers has failed. The thing is that I never got this problem before SP1, so why now ? My 3d Card is the problem, I think, and I have tried a million different types of drivers for the card. It's a Geforce 2 MX/ With TV out (Dell), and I have tried drivers from Dell, Microsoft Update, and from Nvidia. I am using the latest version of Divx. Any ideas on why this happens ?