Well I have just tried it, and it definitely selects correctly.
There is a box on the left hand side, you can either type or select a user in there and then click on either add[BCC] or add[To] and they definitely get added to pm.
Steve _______________________________________________________ Quid Si Coelum Ruat _______________________________________________________
And so I'm assuming we only have the "Blind Carbon Copy", is that correct?
CC is just a useful feature to communicate with more than one person at a time. I don't see a way to put more than one addressee in there. It also lets the person who is the main addressee know who else in the loop.