Yes, another computer question.....

[lebru]

Seriously, you probably live near a radio-head or a tower and its bleeding into the speakers.
My Cellphone does the same thing.

Yep, all electronic devices have to be manufactured to accept any and all interferences....so if you live near a tower, or even on a direct path from a tower, you will get some radiant buzz. Especially from AM channels. Sometimes I can catch 850 KOA just by holding my cell up to my hear.

[DFBrews]

^^^^that
my nextel phone f's with the tv ant radio in the car and tool box and cb radio.
might try a surge protector inline probably wont help but a cheap thing to check.
your house wiring might be acting as an antenna.

[rondog]

Hmmm, nothing right in my 'hood, but there IS a big f'ing tower about a mile or so away as the crow flies. Maybe Micro Center has something I can put in the AC line.....