For some bizarre reason the sat nav feature has disappeared from my monitor. At the same time the MENU screen has reverted to some antiquated version (see attached pic).

I ejected the Sat Nav dvd and tried to reload a v.32 software update dvd but it is not being picked up by the MkIV dvd drive at all. No change comes up on monitor and eventually dvd drive ejects it.
Have tried pulling the fuses to the monitor/navigation system in a hope of resetting everything, but to no avail. The annoying MENU sans sat nav returns.
It's getting ever so slightly annoying now :sad1:
Anyone ever experienced the same? Would love to get it all back working as it should...
Cheers in advance
Dom