Question, go to windows 'Control Panel'/'Sounds and Audio Devices'/'Sounds' Tab/Page.
Then look in the "events" list to see if there is a WAV attached to the "Default Beep" event.

This is the sound 3DGS will play when it hits a beep(); function.
If it is empty, put anything in it (for now), and then test MrGuest's code again.

How did it go?