Lost my expanded desktop on second monitor.
 

Running an aging Dell XPS Gen 4 with a NVIDIA GeoForce 6800 Graphics card. I had been running 2 monitors, a 22" Samsung and a 17" Dell LCD Monitor as an expanded Desktop. Turned on the system today and the second monitor is now no longer a expanded desktop, it is a mirror of the primary monitor. All of my display settings were tweaked and my shortcuts all jumbled.

Oh and I unplugged the monitors, shut down, restarted a few times, yet the second monitor does not show up as an option.

What might be my problem?

Well I restarted the system 4 times, each time isolating the monitors, 2 together, 17" by itself, 22" by itself and then added the 17" again and the expanded desktop and shortcut placement/arraignment was restored. I had thought I had done this before I posted, but I must not have gotten the monitors isolated properly. Dunno what caused it but I think it is now fixed.