The Sims 2 used to work perfectly on my computer. Although a few weeks ago, my computer crashed and I got a blue error screen reading "Ati2dvag is in an infinite loop". I have a Dell Dimension E510, and a ATI Radeon video card. I got on the phone with Dell Customer Service, and they sent me a new video card, saying the old one was defective. Well...after installing the new card, I'm still having problems! When I play the game, my graphics are good but it's all flashy and weird. How can I get the colors and flashing to go away?