If it's not in your System Properties like I suggested above, look in the Control Panel under the "Multimedia" icon.
Also, there might be those types of setting in your media player...
David
(BTW, this is one of the first times that I actually beat other folks!!!

Normally I come in last, for one thing I type up longer posts, and go into detail, for another thing, I'm not the fastest typer in the west...)
...or East, North, South... etc...