Napster Sound Quality in Vista

Hello,

I'm new to the forums and hoped there would be some out there who could help with my problem.

I'm a Napster user and have recently noticed that downloaded tracks have really poor sound quality. In particular, the songs have skips, clicks and

slowdowns. The problems in the individual tracks occur in exactly the same place in each track if replayed and also, if transferred to another computer,

the problem remains.

This strikes me as strange as appears the problem occurs at the download stage. If I re-download a specific track, it's likely it will be fine as the

problem seems to happen on around 1 in 10 tracks.

The problem doesn't seem to be performance related as the problem always occurs in the same place in each track. Also I've tried copying the track from

a Vista computer to an XP computer and the problem remains.

Any help would be appreciated...