Casio CZ/ VZ/ FZ - Pro Series

I just got hold of a Casio FZ-10M and while i was pleased to find that
the backlight still works, i was very annoyed to find that the LCD
screen is blank and remains blank whatever i do. I've also got an FZ-1
so i know that it should start up and display the MAIN MENU screen but
i get nothing. I assume that the unit itself is actually working as
the drive starts up when i put a disk in.
I've tried the 'hold down display and move the value slider' to change
the contrast and i've taken out the connectors on the board and
reseated them, but theres just nothing there.
Has anyone else come across and fixed this problem? I'm assuming the
screen setup is the same as on a VZ.