I'm having the same problem, but even worse. I once left the computer connected all morning and, when coming back, everything was still queued. The tips haven't worked well, and I have an "Excellent" connection with my 512 KBPS DSL (I'm in Mexico) and share plenty of files.

I used to download with Gnucleus, but now every file I try to download gets the message "Waiting for more hosts...", and that happens in any of the computers served by my wireless router.