The PC speaker 'bell' sound is incredibly annoying. Every time you use the tab-completion or do something vi doesn't like the darn thing beeps at you.
Well this is how I turned it off in debian etch.
or change to:
Visible flashes the screen instead of making a sound. I find it MUCH less annoying and it still serves a purpose.
should be gone.
I believe there are other ways - ways in which you configure your own kernel? I think there may be other files deeper in the system you can edit also.