when i am connected to a PC projector, I have four choices: computer only duplicate extend projector only[/b] computer only works extend just shows my screen saver projector only works (shows my screen thru the projector, not on my desktop) duplicate is the one that really doesn't work (this option ...

I have a new Lenovo X200 with Windows 7. I have tried everything in the "book," but still cannot get my machine to go into Dual Display mode when connected to a projector. I can get it to Projector only, but not Dual. Very frustrating. Can you help?
JR