I'm having the same problem after upgrading from 10.04 to 10.10. I've
made the changes manually in my apt.conf file (It seems to take the
proxy settings from the "System/Preferences/Network Proxy" when you
apply it globally, but it doesn't set the authentication details?)
However, this doesn't fix
I have a similar problem. I recently installed a new box and copied all
the podcast episodes I'd downloaded on my old machine to the new one.
However there is no way I can find of telling Rythmbox how to locate
them, so it wants to download them all again.
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Rhythmbox fails to update existing po