Just what the title says. Whenever I go to try to install the game (i.e. when I click the play or play now button), a white square shows up near the top left corner of the screen, but nothing else happens as it won't respond after that. Any help would be greatly appreciated.

P.S. I run on a Windows 7 computer (I believe it's 7, I forget the exact number though so I apologize for that).