Extended Desktop Issue

I have a Dell Lat E5510 with Windows 7 Pro. Last week I hooked up to a Projector and used Extended Desktop to display programs I wanted the class to see. Worked great. Since then now that I am NOT connected to this projector any program that I used on the extended desktop now opens up and shoots to the right like it is going to the Extended Desktop. I can not view any of these programs as they think they are on the extended desktop. Clicking Show Desktop desktop does not work. I have the latest Video Driver for my Intel HD Graphics Card. Any Ideas?

Could you please run a System Restore to a position BEFORE This Happened

See http://www.sevenforums.com/tutorials/700-system-restore.html For More Information

Hope This Helps,
Josh

Nevermind

No need to run System Restore. I right clicked on the program Icon that is pinned to the Taskbar while the program was open and clicked MAXIMIZE. This returned it to normal.