What a pain! And I thought you'd solved the issue. I presume you tried (again) to delete the LW prefs. Remember that if you have a lot of incomplete files, LW can take quite a while to settle down. Which version of LW do you have? And that's windows version what?
Do you ever force resume files. Resuming files can be very effective, but in the earlier versions of LW if you had too many forced files it could could great stress on your connection quality. Only the recent beta version seems to have dealt with this issue more closely. It might even be worth you trying out the beta 4.1.7 - more details found here:
http://www.gnutellaforums.com/showth...5&pagenumber=1