Just encountered a strange problem. Each time i load an mp3 the wave volume sets to zero. i adjust it in the volume properties and listen. I load another file and the sound zero's again but the volume properties show no change but when i click on the wave slider the sound returns. Strange. Any thoughts??

amd xp2500 (not overclocked, yet)
msii kt4v
1024mb ram
440mx 8xagp
oodles of hdd's
win xp pro sp1 up to date

thanks
Tom