Found out my problem. The USB from the Front Panel isn't connecting correctly to the USB-78 on the motherboard. If it sits just right in the port, which I've accomplished 4 times, it will run. If it gets bumped even slightly, it shuts off. Leaving it entirely unplugged stops it from running. It's like when one side of your headphones goes out & holding it just right fixes it. Any ideas on how to fix this?