We installed WPMU, 2.7 and have it running nicely but whenever we have a user post comments, no matter what blog, or if the user is logged in or out, when you submit a comment and hit "submit" the comment is posted TWICE to the blog.
We then receive the following error:
"Duplicate comment detected; it looks as though you've already said that!"
/wp-comments-post.php
if you then go back and refresh the blog, the original comment appears.
Why is this posting twice??? I cannot find anything searching this issue yet.
TIA,
Tony