[alanallos]

Hi Jim

Thanks. I have only just seen your suggestion. I have done this - and it has worked! Buzzing now very much fainter. Still just audible - but not annoying. Thanks.

What do you require re system profile? Are these the details you need?

My two Macs are running Snow Leopard 10.6.2

I have an iMac G5

Hardware Overview:

Model Name: iMac
Model Identifier: iMac8,1
Processor Name: Intel Core 2 Duo
Processor Speed: 3.06 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 6 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: IM81.00C1.B00
SMC Version (system): 1.30f1
Serial Number (system): VM819AES0KM
Hardware UUID: EDF6F066-883F-5EE8-BD8A-CCD64CAE0676


and a PowerBook Pro

Hardware Overview:

Model Name: MacBook Pro
Model Identifier: MacBookPro3,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 4 MB
Memory: 4 GB
Bus Speed: 800 MHz
Boot ROM Version: MBP31.0070.B07
SMC Version (system): 1.18f5
Serial Number (system): W873226AXA9
Hardware UUID: 00000000-0000-1000-8000-001B63999CE2
Sudden Motion Sensor:
State: Enabled


cheers


Alan