I, too am experiencing the same problem. I've used LimeWire for some time and recently have been having problems with the connection and more recently, connecting at all. I moved up to 1.7 thinnking that might do it, but nope. Mac 9.2.1 and Mac OSX.0.4 Limewire 1.7. Can't connect. :P

At least I know that it's not my DSL line or my OS version!

Cheers,
mark a