Selection tool only duplicates - never moves

I have a macbook pro running mountain lion 10.8.2

I am running the trial version of Flash CS6 version 10.0.0.481

If I drag an object with the  selection tool, it always duplicates, never moves.  Hitting fn, control, option, cmd has no effect.

Any help with this would be greatly appreciated.

I found another guy on the forum with the same problem, He thinks it was related to Air Display.  I killed the Air Display process, made no difference.  He also says it worked when logged in using guest account, did not work for me. 

Thanks in advance