I just got this and it was working fine until I ran the BIOS update .EXE off a flash drive. It rebooted, ran through the BIOS flash process, said it failed to flash it and ever since then, nothing comes up when I turn it on. I've had it unplugged overnight. I've tried holding the power button for 3 seconds. I've tried for 4. Tried for 5. 10. A whole minute. Nothing comes up on the screen and the power LED won't even turn off. The only way to turn it off is to unplug the power. I'm not sure what else to do at this point.