Hello,
I have Inspiron 15R N5010, I installed windows 8.1 and updated the ATI graphics. First all went right and used for about 3 months but suddenly some day an error came Video tdr failure atikmpag.sys blue screen appeared and upon restart blue stripes appeared and again blue error. I restored my system to factory state but the error keeps coming. In safe mode I uninstalled ATI driver and using my laptop on VGA adapter.
Guys need ur help.