I didn't configure anything to make it beep. I didn't notice the beeps at first because I normally have console beeps turned off. I don't use windows, so I can't help you if you are using that. But if you are using linux, you can use "xset" to change your console beep properties. "xset q" will tell you your current settings. If you see "bell percent 0" there, you know you have it turned off. "xset b" will toggle it back on.
If you have any linux IB questions, feel free to mail me. Otherwise, maybe a windows IB user can pop in for answers on that platform....