Go to start -> control panel -> sound -> advanced.
See if that is checked, if it is uncheck it. Then hit apply/OK. If that doesn't work... it sounds like a virus or something is playing with your system... i am not sure of that but it is strange that your computer would do that.
-blitze
See if that is checked, if it is uncheck it. Then hit apply/OK. If that doesn't work... it sounds like a virus or something is playing with your system... i am not sure of that but it is strange that your computer would do that.
-blitze