I have a Dell studio 1558 laptop with Windows 7 ultimate. Yesterday i got a blue screen with error for "atikmpag.sys" file and the screen stopped working. It just went blank. Later i hooked it up to external monitor and again got the same blue screen on startup. Now if i remove the graphics driver using safe mode, the screen starts working and it boots up also. But if i install the driver again i get blue screen on windows startup. Could it be that my graphics card has gone bad ?
My pc config is
intel i5 processor, 4gb ram, amd ati radeon hd 5470 graphic card
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