My computer starts up (a bit slow for my liking but i can live with it) it goes through the usaul wellcome screen then black then it loads with my desktop after about 3mins the screen freezes i cant do ctrl alt delete as nothing works my mouse is frozen(its cordless by the way and its been on there for years)i have added nothing new to it in agaes its just started doing it i have to switch off at mains but it now only stays on about 3 mins before it freezes again its 40 gig hard drive with about 16 used its 256 memory pentuim 3 its only about 2 years old never had any problem until last 2 days