Kirby! I was the one that said spyware (if indeed that's what it was) had nothing to do with it and boy is my face red! My version of Ad-Aware didn't detect it, but sure as hell, there it was. After removing it through the control panel, LimeWire works fine now.

I don't recall installing this program! Where did it come from?

My most sincere and humble apologies to you, Kirby - and thanks!