I had the most bizarre thing happen to me today. I was tweaking my social networking code on my BellaOnline forum, rolling in the exact same code I'd done on the LisaShea forum without any issue. However, no matter what I did, the new code simply would not display!
I even ran the permissions check to make sure I wasn't missing any permission problem.
What I finally figured out was wrong was the templates/compile directory wasn't set to give modify access to the IUSR account.
The templates/compile account doesn't even show up on the permission check page.
I'd like to suggest this be added to future versions, to save others from getting stuck in this situation
.