Ok people there are allot of things that may or may not be causing your problems. All your problems have the same symptoms but may be caused by different problems. The link below has allot of fixes for different issues start with the post by Lee Evans on configuring LimeWire and work your way down from there. LimeWire is changing rapidly and some fixes we may not know yet but as solutions are discovered they will be posted. Allot of you need to supply more Info. With the information klaount supplied I can tell that his problem probably is not an issue with memory,cpu,OS , but I can not rule out java because he didn't tell me if he tried the fixes in the previous link. My guess would be firewall configuration though but not sure. Anyway you need to remember I or no one else but you are sitting in front of you cpu and without the proper information it is very tough to help you.
http://www.gnutellaforums.com/showth...threadid=17321