Hardware acceleration issues are specific to certain video cards. Try changing your hardware acceleration to the number 3 position and, if that resolves MM problems, then your card is one with such an issue. Right click on the Desktop > Properties > Settings > Advanced > Troubleshoot
The Hardware acceleration slider goes in 6 notches from None to Full, which correspond to:
1 - None - Disable all accelerations. Use this setting only if your computer frequently stops responding or has other severe problems.
2 - Disable all but basic accelerations. Use this setting to correct more severe problems.
3 - Disable all DirectDraw and Direct3D acceleration, as well as all cursor and advanced drawing accelerations. Use this setting to correct severe problems with DirectX accelerated applications.
4 - Disable all cursor and advanced drawing accelerations. Use this setting to correct drawing problems.
5 - Disable cursor and bitmap accelerations. Use this setting to correct problems with the mouse pointer, or to correct problems with corrupt images.
6 - Full - All accelerations are enabled. Use this setting if you computer has no problems
And Also do you have the newest direct X downloaded?
http://www.microsoft.com/downloads/s...n&categoryid=2