I've got exactly the same problem with one of my customer sites!
It only happens when I try to install
SOME WYSIWYG Mambots for Joomla. Other things work just fine. As near as I can tell, the problem only happens when the wysiwyg mambot file is large. So I'm just guessing that there is some sort of time-out setting at GoDaddy that is causing this. The exact same configuration on my web host (DreamHost) works just fine.
I'm not to the point of installing Community Builder on this customer's site, so I don't know if I would get the same error. Based on your post, I'm afraid to try this.
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Just FYI, GoDaddy has been a complete pain in the tail. I'm
very unimpressed with their service.
sjt