One bar (also lost my music after downloading Pro)
 

I just dowloaded Limewire Pro - can only get one green bar and it says I'm behind a firewall.......and lost all my music???

Re your music being lost -- click on this link (If you've updated LW and can't find your downloads!) In Limewire Links (below) click on (If LW will not connect) and go through these fixes -- if yr problem still remains click on (system details) and fill in as much as you can and post back here