marples

Please help!!! When playing some games on my 19" tft screen, the display splits into 2 and is unreadable. I have tried changing the resolution options. But this creates furthur problems. Why does this happen to the majority of the games i previously played on the same computer with a different montior. Help???

Can any body please help. When trying to play games on my 19" tft screen the display splits into 2. I'm running windows xp and have tried changing the resoltion options but no luck. it doesn't happen with all games, but most of them! Any ideas???? Please help