I have a fairly new computer, and about a month ago it started having the problem of windows not starting and the screen displays a geometric pattern of squares with colored shapes in them. Sometimes you can see the windows loading page faintly in the background. I have a Nvidia Gforce 5700 ultra video card, which I have re-inserted. I got rid of SP2, which did not solve the problem, used system restore, etc.
Once it starts, no problems, it just has to be restarted 1 to 4 times to get things going.
Have run Ad Aware, Spybot, Mcaffee virus scan. etc.
Any help would be appreciated. Thanks, t