Question : Can't change sound schemes, XP

All of a sudden (in the last week or so) I can't change my sound schemes.  I've been prevented in changing individual sounds as well as whole sound schemes.
I found this problem being discussed in forums elsewhere; the "solutions" are checking for malware and doing a scannow.
Any suggestions?
I have XP Pro

Answer : Can't change sound schemes, XP

I have seen so much issues with this lousy AV that you should give it a try...
Try uninstalling it also ....