The last few days I've had a strange occurrence in which a Windows sound would somehow be disabled on its own. The sound is the 'click' that is made when a browser button or link is clicked. When I first noticed the sound had quit, I went to the Sounds tab under Sounds and Audio Devices in the control panel, and selected the Windows default. This fixed the problem but it has happened again several times since. I never change the sound scheme and so I dont' know what is making the change. Also, I haven't noticed any other sound being disabled, only this one. Anyone know what could be doing this?