Game is minimized (Just Cause 2)

I'll play for about 10 minutes and the game is minimized, I try to expand the sound from the game, there is music playing but the game does not unfold. I have win 7 x64, amd fx 4100, geforce 9800 gt, 4 gb ram. I updated the driver on the video, installed all the software that came with the game, but still the game is minimized. What could be the reason? Please help me, hunting to play normally. I will be grateful!