Wrong display of scene

My scene incorrectly looks on one of computers. In the game mode the scene looks correctly, and in a program window - incorrectly. On the second computer everything is all right. Tell me please what’s the problem?

Correct

http://f5.s.qip.ru/gbw3dzIQ.png

Incorrect

http://f5.s.qip.ru/gbw3dzIO.png