All I know is that this is an operator error that caused the following: I switched monitors for my computer. Everything worked fine for an hour, then all of a sudden I can't open any files, they look like they are running but not up on my screen. I can't even use start menu to shut down. It starts process but no choices come up. I tried switching back to other monitor but have same issue. I don't know what I did to screw this up, any suggestions on how to fix it? Thanks