OBC screen appears to display in 4:3 ratio

[MarkW]

OK so I've done a few long trips this year. Noticed on a couple of occasions the screen went blank then appeared to reboot. A couple of days ago, the screen just switched to what looks like a 4:3 ratio rather than the full width of the screen.
The splash logo on start up is the full width but immediately goes narrow.
I've had snags with the TV, no channels, tried several locations including ones I knew I'd got reception previously. Did a battery disconnect and I got TV briefly after.
Mk 4 DVD Sat Nav fitted.
Intravee fitted (This problem has happened some time after Intravee fit).
Any ideas or does anyone know what module generates the graphics. The narrow thing happens in all modes.
Thought she had been behaving for a while (Apart from the door handle failure of course!!)
Oh yes 2005 3.0d

[Horizon]

http://xdrivers.co.uk/forum/index.php/t ... #msg128277

You are not alone, not sure if anyone's sorted theirs. ???

[MarkW]

Thanks for the link. Going for a battery disconnect reboot this weekend. Going to disconnect the intravee and leave off for a few days if all goes back to normal. That thread pretty much describes exactly what mine has been doing.
Had a thought today, I wonder if it's possible to connect the battery negative to an earth point somewhere more accessible to make the ever increasing reboot easier.