Macky4546 0 Newbie Poster

I recently bought a radeon 9550XL(not the best i know) and a new mobo. If i have a 32mb AGP graphics card it will POST and windows will start just fine. If i put the radeon in it will POST but then it was just lose sync with the monitor and restart. Now i put the radeon in my other computer with the same harddrive that was in the new one. I installed the ATI drivers and it works just fine. Can anyone explain my problem?

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