We have installed in a small network a P1500 and everytime we print from any workstation the computer acting as the print server so to speak makes a loud high pitched whine that seems to be coming from the motherboard. I initially unplugged the computer speaker and it still makes this whine. I have talked to Dell support and they even sent a new printer, I have changed printer cables and now have run out of ideas to remedy this situation. We have a real small office and when we have clients in it is noticeable enough for them to ask if everything is ok. ANY help with this would be aprreciated as ANYONE I have discussed this with say they have never heard of this.