Actually I also came here to find out if I should have that enable box checked, because I can't find anything about it in the FAQs or the Using Limewire. I thought I had to have it checked in order for people to be able to share my files, but you're saying it shouldn't be checked? When I do check it, it tells me that my "client is a leafnode shielded by an ultrapeer." I cannot find any of that in the glossary.

I'm worried that because I'm behind a firewall, I'm not able to share my files and am being blocked from sharing other people's files. Sorry to be dense. Can anyone enlighten me?
sue