Hi, i have been using HP G62-b45SE notebook with ATI mobility Radeon 5470 and an intel integrated video processor.Few months ago problems started to appear when notebook switched to Radeon when plugged in ac.Couple of times i got blue scrren but i didnot read the dump.I upgraded the bios from the hp site for my notebook and reinstalled the ATI driver.Now when I boot my notebook it shows black screen and nothing else everything else comes on keyboard works and I can hear the login music also.This problem is constan now.Several times I did manage to boot with ATI radeon active since its hybrid
switches from one gpu to other.Now the problem is constant.When I uninstalled the ATI driver in windows 7 safe mode it booted successfully.I even reinstalled my win7 but no success either.I suspect its a hardware problem that requires mother board to be changed. But Iam not sure.
Any help in this regard will be appreciated.