Yesterday i download the bios 1.13 from acer support site and updated it. My lap was runnin fine, now today wehn i play codmw2 after an hour the system shutdown due to overheat i understand that now after playin 2 or 3 times the same thing happen hardware heatsup but then suddenly after restart only the acer logo comes up and when i press f2 for bios aftr 2 min the cursor blinks up, the bluetooth light which usually goes off stays i searched the similar prolem on the net and found that people say bios is currptd if thats the case plz guide me how to update the bios through usb or wht ever u might think is suitable in this situation iv got 2 months warranty left.