This might be a long shot, but the 002 R is firewire, and I recall an issue
with G5 power supplies causing interference with firewire audio devices.

might be worth looking into.....


good luck!

Geoff


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Wow...

Top banana... I changed the Firewire connection to the one in the
front of the machine and hey-presto, the buz has gone away!!

Many thanks to yuo guys... its been baffling me for ages.

Thanks )

Big smiles all round.