Unwanted folders

Hi,

I was creating links from my merged project to my existing project when I discovered that, somehow, a couple of folders had been created. These folders also contain sub-folders, but otherwise have no content. The "Delete" option is grayed out and therefore unavailable. I tried going into Microsoft Explorer to delete them, but when I open RoboHelp, they are re-created -- I get a message saying I should delete them in the Project tab, but, as I said, this doesn't seem possible.

So: How to delete the buggers?

thanx!
Lon