Can I ask, what way do you try to Private Message people? From the threads, or in their profile? Also, try Private Messaging me, and I'll take a look over your profile in the Administrator Control Panel. I am unaware if anyone else is also having this problem, in fact I shouldn't think so. Also, what are the changes you have made to your profile say in the last month? Just so if it is indeed a bug -- I can try and duplicate it.