to increase their hardware acceleration issues  See previous post at http://www.talesofpirates.com/fo ... ;page=41#pid401448. So here is an easy graphic way to explain.  Good luck.

"All applications have different hardware acceleration requirements, depending on the task they are meant to perform. Problems due to improper hardware acceleration settings include - mouse pointer problems, corrupt images, problems while working with or converting videos in MPEG and DVR – MS formats, issues in playing video files in different media players and display problems with graphics in games. The symptoms include jerky videos and applications running slowly or failing to run at all. This problem is especially common in older PC's.   
      
   Turning off the hardware acceleration system wide in Windows XP  
   You can turn off hardware acceleration completely or turn it down system wide in the following manner:  
         
1. Click on Start > Control Panel.
2. In the classic view, double click on the Display icon.
3. Select the Settings tab and click on the Advanced button. The Advanced Settings dialog box appears.



4. Click on the Troubleshoot tab.



5. You can disable the hardware acceleration completely by dragging the slider to the extreme left of the scale. You can also choose to turn down the hardware acceleration by selecting an intermediate value.
   
   
If the issue is resolved with hardware acceleration turned off, the source of the problem could be old video drivers for your video adapter. In that case, you need to contact the manufacturer of your video card to get the latest drivers.   
   
If you have installed the latest video driver for your video adapter and you continue to experience graphic issues with the Graphics Hardware Acceleration slider set to ‘Full’, try experimenting by reducing the acceleration by one notch and checking the results. "  Copyright DeskShare Incorporated   

Hope this helps you also here is more information to help you along at http://en.wikipedia.org/wiki/Hardware_acceleration