Sometimes I really hate rebooting, because it seems that something always goes wrong. The last reboot was no different, because my #2 monitor now has a black screen with the message which says "Cannot Display This Video Mode". I remember dealing with something like this long ago, and it had to do with the refresh rate set for that monitor, so I opened the Nvidia Control panel to "Adjust Desktop Size and Position", and as expected, the refresh rate was set to 85. I've attempted to reset it several times at different resolutions, but the screen remains black. How do I deal with this?