I have two monitors set up, one is my laptop monitor and the other is an external display. The external display is on the right side of my laptop and levitated with a stand, so I set the display positions in the 'Displays' settings to reflect their physical position.
The following is a screen shot of my workspace switcher, the bottom left one is my laptop display and the top right is my external display.
So there are two main problems:
The desktop background reflects the display position that I set up in 'Displays' settings, and you can notice that all my desktop icons are in the top right corner which I have no access to, it's not in my display! If I move the laptop display to the top then they show up.
The workspace display is not correct on the big screen, it's missing the left part.
Does any Ubuntu expert know how to fix this? P.S. The system is 12.04 64bit.