I don't seem to be able to edit my posts. The edits don't take. Could someone look into that? Thanks.
Your permissions all look correct.
It might be possible that you have a problem (bad data) in one of the forum saved cookies in your browser. You can try to logout, then login again. Click on the "logout" link near the top of the forum page. Make sure you have your password handy, since that will be needed to login again.