Hi Acorn

First of all - thanks so much for responding. What you've produced is pretty close to what we're after - and does, of course - work.

I'll have to pick apart how you're doing this when I'm fully awake. Can you give me any pointers as to how you've achieved this?

I'll also try running XWD as an admin - as you suggest.

It looks as if you've created this example in XWD 15. Is that right?

Thanks again.