They both have audio in their posts. If you are using dial up it probably is taking a long time to load and that is why you think you are freezing. I have cable and McCyberDude's posts did hang up a little bit on me
I didn't realize people were putting sounds in their signatures. Not cool. I've sent both of those a note and also added a line of text where you edit your signature to ask people to not put sounds in there.
You can turn off sounds and/or images, or signatures, by the way, in Tools > My Settings on iHub.