The following is most likely highly insignificant, but I think it is still worth mentioning to some extent.
I know I'm having some problems, occasionally, with receiving forum pages. (I'm using Firefox 2.0.0.4) The problem is usually easily corrected with a page reload.
What I most often see is a mix of raw HTML and partially compiled formatting. It is sometimes more broken than that.
Again, the problem is usually fixed with a simple page refresh.
