All of the sudden I can't play DVD's anymore. When I try and play DVD's in Win Media Player it says "Windows Media Player is currently unable to play DVD video. Try decreasing the number of colors displayed on your monitor or decreasing the screen resolution. For additional solutions, click More Information to access the DVD Troubleshooter." In Interactual DVD player it says "Playback failed due to a problem with the video subsystem. Lowering your screen resolution or color depth may fix the problem". I have tried changing all the display settings my laptop has with no results. I tried reinstalling the video driver and nothing happened. I also installed the latest directx drivers and the problem continues. What is wrong with my laptop (Compaq Presario 2800, 1.4Ghz P4, 384Ram, ATI 7500 video)? What can I do to fix this?