Thanks folks, I won't be continuing here. I appreciate all of your comments, but I prefer forums with a somewhat different structure...
If any of you are MVP users, please suggest using a golf tee to knock the bottom button back on the relevant forum, moving the button left and right as you do so. It was a very cheap and easy fix for me, and I'm sure others would benefit from it. The thread is in the APV forum. The OP describes the method, my only suggestion is to use a golf tee, and particularly nothing metallic or otherwise a conductor.
Best,
Paul