I'm not sure, I'd just go down the list. Another thing you could do would be to copy/paste the plugins into a subfolder (e.g. inc/plugings/temp) and one by one move them back into inc/plugins to see the problem without diabling anything.
I disabled them all one by one then did a test post and did those to all the activated plugins and nothing happened.
For some reason I can't seem to find what you are talking about:
ACP>>Templates & Style>>Templates>>Current Theme>>Then waht?
Who knows why but right now the whole forum is screwed up spam bots... Theme was screwed up before I fixed it...
Can anyone help me solve this?