I've been using the same set up for quite a while but suddenly am having problems with one of my blogs validating for network code: http://triviatidbitonline.com/blog/ I have the code in the sidebar so it is always present no matter what page of the blog you are reading but now validation process doesn't seem to recognize that it is there. I don't know what to do to fix the problem. I'm using WordPress if that makes a difference.
What does that mean? I have some other pages though that for some reason the crawler doesn't see the Ad co-op code even though it is there and displaying the link properly. This is more than one site affected.