Online status indicator doesn't change

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http://askubuntu.com – When I change my status through the mail icon on the indicators panel, it doesn't actually change --- opening the menu again reveals that it's still set to offline. I was wondering if this is because I've removed Empathy, or if removing any other package may cause this. I'm sorry if this is a duplicate --- I'm not sure the exact name of that panel, which made it very hard to research. (HowTos)