Hi Guys,
I am having the same problem, which just started a week ago. I tried the recommended fix by Lord of the Rings, but LimeWire still doesn't work. Only difference now is that it goes past the "Loading User Interface" box, but the program crashes right away when LimeWire asks to to Upgrade to Pro. So I actually never have a chance to do anything within the application.

Any other possible trouble shooting tips??

Please help!