I'll give you the long version: several months ago I downloaded the Basic version - worked GREAT the first day. After booting up the next day and starting Limewire, I foud that no matter where I put the mouse, the left button would not work - I could not select anything. I removed it. I downloaded the basic version about 3 weeks ago - exactly the same thing happened: worked well the fisrt day but then, the left mouse button was inactive. Note the mouse button worked everywhere except on Limewire.
I then decided not to be a cheapskate & downloaded the PRO version - and I'm in the same position. I can type stuff in the search area, but the mouse button does nothing. What can I do ? I feel I've been ripped off !

I'm guessing it's a Java problem. Try updating

http://www.gnutellaforums.com/showthread.php?t=36420

As to how you can feel ripped off when the Basic didn't work and you then decided to go Pro anyway is beyond me

after removing & re-installing my java, it worked fine