Rip out the internal speaker.Already tried that. Next one?
(I assume you're running win xp or vista?)Double click on the volume control icon in the lower-right corner and set the PCBeep to mute.Oddly enough, there is no speaker button in the corner, because I don't have a sound card, and all attempts to find the PCBeep volume control are failures. I checked under control panel and I can click the sound there, but no options are available to press.
OK?
Found it under hardware. Disabled the beep. BOOM! Headshot!