I just upgraded Jitsi on my ubuntu box, my MacOS laptop, and my work Win7
machine, and now it's refusing to connect to the various chat servers.
My chat servers FB chat, google talk, and some generic XMPP services. It
happens on my corporate network, my home Comcast network, and various cafes.
When I go to Preferences->Accounts, and then uncheck and then check the
accounts, it will sometimes rarely connect.