I have two problems with anchor tags. First, in preview mode, the full url of the current page is added, so rather than navigate to their targets, they try to open a new editor page. So, a tag like this:
>Return to Top</
opens a new window. I found a workaround for this. If you go to preview mode, then switch to html mode, and then back to preview mode, the anchor works properly. Without the back-and-forth, it opens a new window. I was able to reproduce this behavior in the editor demo.
Second, we had a case where the url of the editor page actually got added to the href of a number of anchor tags. I manually cleaned them up, and the problem did not recur (yet...). I can't reproduce it, but it is not the kind of thing a user could have done on purpose. I have asked the user for more info on how this may have happened, so I will post again if I hear anything interesting.
BTW - while researching this problem, I ran into this post (http://www.telerik.com/community/forums/aspnet-ajax/editor/editor-generates-target-and-re-target-properties-in-links.aspx
) which discusses a 're-target' attribute being added to anchors. The anchors I cleaned up also had this attribute.