Cos, I don't think PG2 has anything to do with you're problem. I have the same version of Limewire Pro along with PG2 and I'm having no trouble. PG2 is blocking 1,149,894,302 IP's and everything is good.
Have you posted you're system details??
http://www.gnutellaforums.com/connec...-you-post.html.
We might see something that is causing you the grief. Hope this helps.