Game Problems.. question if the video card could be problem

[Extremerc12]

Hey everyone: I just build a new computer (spec are detailed in my sig as rig 2) but, anyway I have been having game problems. I have a Radeon 9600 Pro 256mb in my new comp and when I try to play Halo the computer says gathering exception data then crashes back to desktop. The most recent problem I am having as well is with Need for Speed Underground. Once I installed the new Catalyst drivers I was able to get Need for Speed open but after about 5-10 minutes of playing the sound and game just crashes back to desktop and or crashes the entire computer. When it crashes the entire computer it goes to a blue screen says that windows encountered a major problem and needs to shut down. After that the computer restarts. It seems that the problem went away when I put my 9600xt in but, I am not sure of that as I didn't play with it all day.

Extreme

[DragonNOA1]

If the only thing you changed was your vid card and the other card you replaced is newly bought, then that new 9600 card might be defective.

[Iniamyen]

Did you uninstall the drivers, put the card in, and reinstall new drivers? Even though they can use the same drivers, it could cause a problem.

edit: I reread your post, from what I understand you had problems before any cards were swapped so you may ignore what I wrote above. Have you run a virus check?