please help. limewire was unabel to initialize and start due to firewall

[smiget]

hey, ok, i installed limewire, however when i go to run it i get the Limewire 4.9 picture poping up and then a "message" saying

"limewire was unabel to initialize and start. this is usualy due to a firewall program blocking LimeWires access to the internet of loopback connections on the local machine. Please allow Limewire to acces the internet and restart Lime wire."

i know its not the windowsXP firewall, i checked that, so is it the "loopback connections?"(i dont know what that is)

thanks