Hi, i tried to upgrade my 3.Od Sport 2003 MK4 Navigation system to v31 bought via ebay.. and now the navigation option no longer appears.

Sequence of events:
ignition to on, wait for nav to boot.
Ejected map cd.
Put os cd v31 into drive.
briefly saw software cd loading message.
then screen went totally blank. no progress indication ect.
left for a few mins anyhow as nav drive was making promising noises.
started car, new os appears to have installed.. but no navigation option appears from main menu.
put map disk back in drive.
Tried process a couple more times, swapping map with software disk.. again but it does not appear to attempt to reload the software.

Any ideas would be greatly appreciated! i loved my sat nav.

Thanks

Mark