After the computer is turned on and programs have been running (but finished and closed), eg, ms Word, media center TV, etc. and I try to run a game (Splinter Cell or Prince of Persia WW) the video from the time it starts up is corrupted - in a shattered / jagged pattern (top 1/4 of the screen) and the game won't run properly. However, when I run the game as the first program it runs fine. Why is it doing this? How do I fix it? Is it a bug or faulty card? Do I have adjust settings?