Please help, this is killing me

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http://www.daniweb.com – Hi guys, im currently using a dell studio 15, and i just recently upgraded myself to windows 7. All was fine till a few weeks ago where i started to get problems with my graphics card. My screen will flash black once, come back up with 'ati radeon stopped working but has recovered' work alright for a minute then the computer just restarts itself. I have updated the ati driver, and have made certain by using 2 different device updating softwares, however this problem just doesnt want to go away. The computer runs well in safe mode, except for the obvious limitations it puts on me. Help me PLEASE!!!! (General)