Now here is an interesting twist to this story.
I have installed this firmware which is from a identical player:-
http://www.mympxplayer.org/rockchip-...-pm-df895.html
And it booted up ok with a completely different version! :shock:
One snag though is that the menu button and the backwards and forwards buttons are not recognised, the play/pause, startup/shutdown button does work however and this firmware fixed one of the bugs, the annoying buzz.
The upshot of this is the screen display is perfect and I can play music fine and there is some improvement to the firmware, but I can't navigate to change any settings.

ops: