Same Problem and I solved it!!!!

computerGeekda3rd

Honorable
Jan 28, 2014
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10,510
Go to your start menu, on the search bar type in Window mobility center, Click on connect display, After that choose the apparence of you computer click on Duplicate my desktop on all displays.

My operation system is a Windows Vista but Windows 7 should have the same or similiar features.

Hope that helps!!!