Go to Tasks and then select settings in Windows Media Center. Select General and then Visual and Sound Effects.
Use Transitional animations: This setting enables smooth transitions between menus and screens when enabled. Disabling transitional animations might help give a struggling video card a small performance boost.
Play sounds when navigating WMC: This setting enables sound effects when you navigate through Windows Media Center.
Select a Windows Media Center color scheme. Your options are:
High contrast white
High contrast black
Prevent Screen Burn
If an image stays unchanged for a long time on some screens a faint remnant (called screen burn) of the image will remain on the screen when the image changes. You can minimize screen burn during video playback by changing the color of the lines that might appear on the left and right or top and bottom of the video. The video background color can be changed from black to different shades of gray to white.