Is anybody of you running Limewire via SocksCap? V1.2 worked fine on my machine (Win98SE), even when I didn't use the "Force IP" option, but V1.3 only works if I run it for the first time OR without SocksCap (I can do this for troubleshooting, although I really >should< use the SocksProxy)... When trying to connect via SocksCap ZoneAlarm only asks whether it should allow the program to connect to the internet, but not if it may run as a server. So my theory is that Limewire1.3 tries to connect to a server, waits for an answer and then quits for some strange reason. But why? Because it can't get any reply?
Reinstalled V1.2 and it seems to work OK... (TIP: Always keep copies of your old installation files and change the name so that you can see which version it belongs to!)