I've got a different 0K issue.
A lot of my downloads go fine for a while, then suddenly drop to 0 KB/s and stay there forever. The status is "Downloading from x.x.x.x" and no matter how long I wait it never goes into "requery sent" or "connecting to" mode. This clogs up my upload slots and bums me out, because Limewire never retries those files and the only thing to do is kill the download and hope you get lucky with the resume working. This is tough to do when you have already downloaded most of a file, given Limewire's iffy record of resuming.

Is it known what causes this to happen? Can LW add some kind of defibrillator button to zap dead downloads back to life?