Hey guys ive got a problem with playing games on my PC...When I start my games up everything is fine and i set the graphics options to the highest and put my resolution to the highest i can get on my monitor 1440x900 and then when i play, the game is perfect and the graphics are smooth except for the text...its all blurred out like im running it on a lower resolution...i have the latest updates for all my drivers and its still doing it...its only started doing this for a few months...its happened with several games please help 
GPU: radeon 4870
CPU: e4600 at 3ghz
Ram: 4gb
OS: Vista 32 bit
GPU: radeon 4870
CPU: e4600 at 3ghz
Ram: 4gb
OS: Vista 32 bit