|Sorry for the delay. The email notifications stopped for some weird reason.|
I JUST discovered the problem, before I read your last post. It was the mouse, so I find it a coincidence that was where you were going. But here is the weird part. And this is why I didn't catch it earlier, because I DID try a different mouse during all of this. It was one of the first things I checked.
The problem was that the bad mouse would corrupt the Windows session somehow. So when I would test the mouse, I would disconnect the old one, and install the other one. But by then it was too late. I would have had to reboot with the replacement mouse to properly test the mouse. In fact, if I boot with the new mouse and THEN also hook up the old one, the problem returns. I think my old mouse is a virus! :)
BTW: It is not a specific USB port issue...all ports were affected when the bad mouse was on any one port.
As I said earlier, this issue is totally new to me...that a bad mouse can corrupt the windows session itself.