Spot on both of you.
Yes, I'd tried that before coming back here.... and it worked!
What fooled me was it would go up and down all by itself, had this with the old CRT telly's, my first time with a LCD, I was instructed to leave it disconnected so I did.
What misled me was that if it was the button it would do one or the other and not both, sometimes it would be fine.
Sure as heck as soon as I plugged the panel back in the fault re-appeared and stopped when disconnected.
Thank you for your time and quick response.
Dave
