This hasn't happened to me personally yet on my server, but I've been seeing it happen to literrally 50% of players at times. It will happen between games or at the start of a new round, usually. I've told the players that this has been happening to to manually update Punkbuster at evenbalance.com, but this doesn't seem to have fixed the problem.
Is anyone else getting this since the last PB Update? Any ideas to fix this?