OpenGL in CS

I have an Asus v7700 Geforce2 GTS, it seems that every time i load a map in CS, this is always a rectangular static piece covering a third of the screen. Only when i disconnect n load again does it work. Any advice on how to solve the problem n any good drivers to download?

I have the same problem im using the Dell version of the gforce2 gts with detonator 3 drivers the latest ones. I usually hit f10 then re enter the game and it goes away.I also have lock ups now after playing about a half hour under open gl. I just did a fresh install and thats when this lock up problem showed its ugly head.Im not sure why im getting lock ups now after the fresh install and it was fine before.See ya on CS…Keep your head down!