Pidgin Bonjour Protocol Error

I have no idea, why my Pidgin Bonjour doesn’t work, when I launch it.

My Another Windows Version Pidgin communicate well with Mac OS Lion’s iChat.

I guess something is wrong with Ubuntu Version.

By the way, if you’re using firewall.

Here’s TCP/UDP Port for Bonjour. –> http://support.apple.com/kb/TS1629