I did a quick look around, and I'm not even sure what to look for. I did some housekeeping on my site yesterday after upgrading, including working up another template for pages...some how now, once a person leaves a comment, no one else can on that post.
It almost appears as though the commented page is loading with my new blank page default, in which I stripped out comments and the sidebar. But I don't know how that would be determined. Where would I set that option?
An example of with comments here And no comments here.
**Edit, upon further review of the source, it appears even though I deactivated the gravatar plugin, it appears that my comments page is still looking for a gravatar, thus giving me a fatal error, and not writing the rest of the page. Guess I need to physically delete some code from my comments.php template.
Sorry for the waste of space.