I'll have a look at that thread then thanks. I don't think the gaps were there before but maybe I'm wrong.
I've been fiddling around with this most of The morning and the issue seems to be just...

Hi Sean. This is my first post!
Many thanks for this, it's great to get it back again. I used option two and "To Restore Windows Photo Viewer for All Users". However, I have an issue you may be able...