MY 2200MP was working fine two days ago.  Today I connected it to my laptop and the screen it projects is a split screen,  i.e., you see the left half of the computer screen twice divided by a black line.  (The computer screen on the laptop is working fine).  I have not changed any of the settings on the laptop and have been using the projector and laptop together for months.  Nothing new was installed on the laptop.  The start up screen of the projector is NOT split ( the screen that says "Dell" and is all white).  I have tried pressing the Resync button on the projector and restarting everything and neither helped.  Thank you very much!