I wonder if someone is developing a new "feature" in LJ for sending MIME messages, and something in your profile is accidentally triggering the feature... it's the only explanation I can think of.... I assume you've tried contacting the LJ support folks?

Yeah, I've decided that aside from the obvious "Teddy Bear" relationship to my name, my personality definitely has some ursine characteristics. So I've been really partial to bear pictures. :-)