The problem is i got a new gpu HD5850 (great card) and it seems this is too fast for my screen, I always have screen tear and have to enable v sinc in games to smooth things out. Now this screen should be 75Hz but I can only get it to 60Hz with CCC, or windows desktop display settings! Does anyone know a way to force my samsung to 75Hz. As v sinc is slowing my peformance down and affecting my mouse movement, thanks...