Limewire installed Firewall issues

[juice]

I am running Snow Leopard 10.6.1.
i have imac 3.06/4gb/1TB/512


Ran limewire up until 2 weeks ago with no problems then it wouldn't open, so deleted all limewire files from computer and re installed (5.4.0). It installs no problem but it wont connect. When i go to advanced options it says i am a Leaf node and behind a firewall.

I have gone to system prefs / security and both with my firewall not activated and with it activated and 'allowing' Limewire, Limewire still wont connect.

I have a laptop (pc) which also runs limewire and i'm having no issues with connecting.

Also when i close down limewire it wont close completely and I have to Force quite the application.

I have searched various forums and can't find anything that will work..


Please help.