My office/dev PC is a triple monitor machine running Windows 2008R2. I occasionally remote desktop to this machine from home, using a single monitor. After I do that, the "Main Display" reverts to the leftmost of the three monitors, and I need to reconfigure my monitor settings when I get back to the office.
I do have DisplayFusion installed for menu bars on all screens, and haven't tried to disable that to see if that's the culprit.
But I have switched the video ports driving the leftmost and center monitor, thinking that maybe my machine was just reverting to a default video out as the main display. That didn't help.
Anyone else seen this? Any ideas on how to get the "Main display" to stay set to my center monitor?