Is there a new one?
I use two programs, Windows Media and Mediamonkey, and they have both gone wrong.
Mediamonkey will only cycle through the library, ending up on a jazz tune that I didn't install, and which I have now removed. So now it cycles though the library and settles on something else, but when I click play, it just cycles through the library again.

Windows Media kept giving me error messages, can't find this and that, so I allowed it to delete everything it couldn't find, and it deleted EVERYTHING, all except that same jazz tune.
I wish I could remember the tune. Something by Mark Sales?. I deleted it manually in a fit of pique.

Seectind and deselecting changes nothing. Virus killer finds nothing.
The other thing that I've done, prior to having the problem, is to install Polderbite sound trialware and CD to MP3 freeware.

It isn't a tragedy, I have all the music in other formats, so it just means tedious reinstalling, But does anyone know of a virus that does this?   Chris.