XF 1.5 Suddenly can't post a reply to forums...

Suddenly I cannot post a reply in my forums or post a new topic or start a conversation. Checked permissions and all is well. No reason not to be able to.

Hmmmmm this may be a FireFox issue. I pulled up IE and logged in and was able to post...wonder how this happens since FF is what I normally use and used just the other day.
Hmmm...ok maybe it was just a FireFox issue. I killed FF and brought it back up and gee whiz it worked. (scratching head)...