When I move my PDF from one monitor to another, I lose my ability to see and use the toolbar at the top. I have to minimize the doc and then maximize it again to regain those functions. I am running acrobat 8 standard on Windows 7. Until recently (few months), I've never had this issue. I haven't had any new software or hardware installed since it started although I believe my Windows is set to auto update. I reinstalled acrobat but it's still happening. It doesn't happen with any other document types (excel, word, browsers). Help!!!