I couldn't reproduce the problem in Windows, so I can't use this utility.
Originally Posted by Qlitchford
I've had this problem with a x1900xt and now a 8800GTX. Its nothing to worry about, just a side effect of the high frequencies in the new hardware.
I don't think that's what it is. It sounds too loud.
Actually, I've made a recording of it
. When the video goes black halfway through the recording, I moved my cam to the back of my computer case.