ive just installed the latest version of LW and now everytime i try to open it i get the message:

'Limewire unable to initialize and start. This is usually doe to a Firewall program blocking Limewire's acces to the internet or loopback connections on the local machine. Please allow Limewire to acces the internet and restart Limewire.'

i have no idea what this means. my firewall is off and even if it wasnt Limewire is on my Exceptions list. so im at a loss as to what to do.
please help!

p.s. if it helps, my computer is a Microsoft Windows XP Home Edition 2002