I am having this same problem. I also just upgraded to windows media player 9 and now limewire dosent recognize the shared file I have been using for a few weeks now, with 100+ succesful downloads. I created a new file for downloads and it worked for a little while until I moved all my files from the original file to the new one, now limewire dosent resognize either. if I try to set the shared file I get the error message "invalid directory for saving files"

What am I doing wrong???