I have an ASUS U56E laptop that randomly reboots when running anything, minesweeper, spider solitare, IE explorer. No bluescreen appears, the screen goes black and the machine reboots. If you win a spider solitare game and leave the fireworks running in background it does not reboot, but if you leave the fireworks running for a while as soon as you kill the fireworks it shuts down immediately. I have run temperate checks, memory check, full disk scan, and reloaded the machine from initial disks. I even brought it to Best Buy and their geek squad told me they tested it thouroughly by running a video streamer on it and it didn't shut down after 4 hours so there is nothing wrong with it. I don't know where to go from here and appreciate any suggestions.