Alright, so I seem to have whittled the problem down to just specific posts.

I just went into my dynasty thread on Firefox, I can edit regular update posts, I can edit my Top 25 games/polls posts, I can edit my yearly schedule and other stuff. But I can't edit game posts.

Here's one of the game posts as an example: http://www.thegamingtailgate.com/for...l=1#post236624

I have checked other posts, including the ones on the first page of my thread with the dynasty history and statistics, which are loaded with tables, and those even load up alright. So I don't know why it appears that game posts aren't able to be edited, but instead just show up with an empty editing window with nothing from the actual post. The fact that game posts specifically have the issue, but seemingly none of my other posts in that thread, makes no sense.