on 3/7/05 8:02 AM, David DelMonte at ddelmonte at mac.com wrote: > Hi all, is anyone else experiencing sound problems in 10.3.8? Is there > a known problem? I get low frequency hum from my connected stereo, and > feedback buzz from my plugged in guitar. > > running this on both a 17" powerbook and a G5 2.5. The guitar is > connected to an M-Audio Firewire 410. > > Thanks > > David It sounds like what you're experiencing is a ground loop. Make sure that everything in your computer system and your audio chain (interface, mixer, etc.) is using the same A.C. electrical circuit ... use one or more power bars if needed and have them all going to one plug-in at the end. Alternatively, if the M-Audio interface or any of your other audio equipment has a ground lift switch, lift the ground to see if that solves the problem. -- Gregg