thank you for the reply. just an addition the error message i get in windows media player is as follows -
"Windows media Player cannot find the file. If you are trying to play, burn, or sync an item that is in your library, the item might not point to a file that has been moved, renamed, or deleted."
but befor i upgraded to win 7 i used to always delete the old file i downloaded to stream (both WMp and Winamp) and download a new file and it would work, so just to conferm this is server side and not client side problems?