HP F2105 Monitor Electronic Hum in Speakers

This monitor works well, but the built-in speakers have started to have a noticeable hum whenever the computer and monitor are on.  This never was a problem in the past.  It does not do this when in sleep mode.  I've tried adjusting the green-to-green cable, and it does nothing to solve the problem.  Any suggestions?

That is strange. Have you tried connecting a different audio cable or perhaps connecting the monitor to another PC?
Sounds kind of like static build up.
"A riot is the language of the unheard." - Dr. Martin Luther King Jr.

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