I need help! I downloaded Limewire last night and the downloading went fine, but it doesn't let me get into it! A message keeps popping out saying:

LimeWire was unable to intialize and start. This is usually due to a firewall program blocking LimeWire's access to the internet or loopback connections on the local machine. Please allow LimeWire access to the internet and restart Limewire.

PLEASE HELP!!!!!!!!!! Thanks!