While playing video files with WMP10, your machine may not be able to display thee video using the all possible video acceleration techniques. Turning off video acceleration may allow your machint to display video correctly. To do this, go through the following steps.

• Press “CTRL+1″ to switch to full mode if
  you are in the skin mode.
• Press “CTRL+M” to turn on the menu bar.
• Click on “Tools” and then “Options”.
• When the “Options” multi-tabbed dialog box will open, select “Performance”.
• Underneath “Video acceleration”, move the slider from “Full” to “None”.
• Click on “OK” to close the dialog box.

By this, you can play videos without any problem and better video quality.