I was using Limewire 2.1.3 with reasonable success, until one time I came back to the computer to find that both of the files that were downloading had stopped, apparently at the same time, with a 'Could not download' message. Since then I have not been able to download anything at all. I upgraded to 2.2, but it hasn't made any difference. The files keep trying, requerying, apparently forever, but nothing downloads. Any suggestions?