Thanks for the feedback. I tried as many fixes as I could fit into my free time on Sunday, but I have a few more to run through. I think I tried out the likeliest candidates, however.

I updated Java this morning (to version 6, update 12) this morning, though LimeWire has yet to acknowledge the change on the Help/About Limewire page.

I'm connecting from home, from a personal computer, through a Charter Communications cable modem. I don't think any system blockages should occur from the server end, although I do have a university antivirus package (Norton) protecting my computer.

The modem I'm using is the one Charter provides, a Terayon TJ 715.

I have "Use PnP" ticked in the firewall config menu.

Thanks again for your help. I'll double-check my Java install and keep plunking through the fixes.