Weird open gl problem

Well my problem is kind of different then al of yours… CS worked fine with direct3d… but when i switched to open gl i had problems… I would be able to play a game fine… but when i exit out of cs i am not able to open it anymore… id click on it, but nothing would happen… i wouldnt be able to open quake 3 either… Could someone please help me out

same problem, lol sorry no help here.