Tiger Bits: iChat Weirdness

Tiger iChat is acting a little bit buggy.  Or at least different from the way I am used to iChat behaving. 

So far, I haven't been able to send people images through chat since the update.  The other really odd thing is that when someone logs off, I receive a notice that that person has logged off, but his / her chat window remains open with a field where I can type. Haven't seen this since the early versions of iChat.