Re: Problem with audio card
Pulse audio has nothing to do with this, you can remove it altogether...
How many physical outputs do you have on your card? is it possible you're plugging the headphones where the speakers should go?
Check using alsamixer in terminal, using F4 and F3 to switch between playback/recording, adjust/enable/disable channels as necessary (using the M and space bar to toggle options, while speakers and headphones are plugged in.
Once satisfied, issue: sudo alsactl store (to save your settings)
What in tarnation is antivirus?