>Let's assume you run OSX. If you create a new user and log in to that >new account, while being logged out of your normal account, does the >beeping still occur? > >Did you by change install any programs around a month back? Thanks, Arjan -- your questions gave me a clue and I figured it out. The beep is apparently made when the HP Communications process is trying to connect via USB to my Photosmart 1215 printer (installed about a month ago.) I hear the beep every three seconds when the printer is plugged in -- whether the printer is off or on. When I log out, it stops and starts when I log in again, even with a clean user account (10.3.3.) When I unplug the USB cable from the back of the TiBook, the beeping stops. I should have figured it had something to do with the HP software. Thanks again. -- Melinda Stamp Marquette, Michigan, USA