I've upgraded to Ubuntu 11.10 and it seems that it has a lack of support for internet connections with a proxy.
Pidgin has stopped working, and when I go to the Proxy tab, under the settings window, it says that it can't find the proxy configuration program (after explaining that pidgin uses the Gnome preferences). Here I found this bug
My last hope was Kopete, but seems that it also hasn't proxy support :(
Any idea on how to use a multi-protocol chat client in Ubuntu 11.10 with proxy support?