I have a Lenovo G575 laptop with Windows 7 that has an odd problem.
It works fine, no crashes, no software issues, plenty of hard drive space. I've upgraded it to 8GB of RAM recently, but this issue existed well before that.
The problem? It won't REBOOT. It shuts down/up just fine, and that is what I do after installing updates, etc. But if I do a Start -> Reboot, it goes through the motions of shutting down, and right about where it gets to the point where it should start up again, the screen goes black. No message. I can still hear the fan and the hard drive, but nothing happens, even if left for a very long time.
As I said, everything else seems to work fine. Not sure where to look or troubleshoot this one, thought maybe someone here would have some advice. Thanks!