How do I turn off the keyboard beep?

[lupinstel]

I want to turn off the beeping keyboard, but not mute me UX. Anyone know how to do this? I though I once found some place to change this setting but I can not find it now. Thanks.

[LJD4]

I hit Crtl+A to bring up the Adjust Volume dialog then turned the System Volume all the way down (Doesn't affect any other Audio)