I read a post (sorry can't remember who posted it) about they were able to post comments when the comment was done in a pop up window but not if the comment box was readily available below the post. So I checked it out, and sure enough, I can post in a pop up box but not in a box that appears below the posting. I have gone in and changed my option in my settings for comments to be done in a pop up box. I know it won't help me, but it may help anyone who may have wanted to post here but was unable to. I do like hearing what others have to say :-)
Katie who has bunches to do and here I sit!