Originally Posted by
Quatroux
I'm guessing that the graphics driver upgrade forced you to reboot. Therefore, you can skip tech support question #1: "did you reboot?"
I had multiple problems when I changed resolutions in windowed mode. I had to go full screen to select a larger resolution. Only then did the mouse pointer match the actual mouse movement/location.
Would it be possible to go to a single monitor just to see if it works? I'm thinking you could find the problem if you get your configuration as simple as possible and add one things at a time. I'd start with one screen and any additional software disabled.