Alright, I don't know what happened, but all the experiments with IBobi have resulted in notifications, so I'm not sure what happened.

If I can hijack my own thread to ask a slightly related question, I (used to) have all the PMs I'd ever sent back to the beginning (2002) in my Sent box. Now, there are still PMs in my Sent box back to 2003, but all the old ones (2009 and before) when I click on them, I get the original message I responded to, not my message. Yes, this is in the Sent box. All the recent messages (this year) there are ones I've sent.