How come my computer gives feedback after listening to music after a few minutes?

by on August 6, 2012

Q: I am using Windows XP and lately when I am listening to music, it cuts in and out and also, the entire program intermittently sounds like tremolo or feedback. It does it on all music on the internet no matter whether it is streaming FM or which browser I am using. I turned off the web scanning feature of Avast antivirus to no avail. The CD player sounds fine.

Any ideas?