Is the file a gnutella network file or a torrent file? My guess is a gnutella network file. My guess is LW may have detected some kind of corruption with the file & keeps attempting to redownload the corrupt parts. Go to your LW incomplete folder, open the file directly & see if it is complete or not. If yes, cancel from LW & simply rename the file ridding of the incomplete prefix.
http://www.gnutellaforums.com/downlo...wards-why.html