You may have a z-index issue. That is covered in the documentation.
Some template designers use z-index to position header elements, which may put a transparent element on top of your ribbon or modal. In Chrome, you should be able to right click and "Inspect Element". If the element isn't the policy link, then you've got a z-indexed layer that's positioned itself on top of the ribbon or modal.
I've got a piece of code that I've been meaning to implement to resolve this. It looks at the entire page and takes account of all elements and their z-index - then returns a z-index value that will be above everything else. It would definitely resolve some support requests.