I've been playing around with my new computer today, mostly playing UT2004, and I've ran into a very weird problem twice. When I minimize UT2004 with alt esc I can get back to the desktop just fine, but when I click on UT2004 and try to maximize it a weird blue screen with a bunch of characters flashes for a second, a loud sound thump comes out of my speakers and my computer restarts. I haven't encountered any other problems besides this. Anyone have any ideas as to what the heck is going on?