Nav pro problem, map data missing!

[182_blue]

Got in the car this morning and drove off,  I later tried to set the navigation but got this warning 'please insert a data medium with valid navigation data' ,  now I haven't updated it since the November update and have not done anything to it to make it do this,  I'm hoping when I get in later I can just put in the old so card with the November data on (God I hope I saved it!) and it will reinstall it.

I was just wondering if anyone had similar?

[fredgroves]

Sounds like a system glitch.

Switch off, lock up, leave it half and hour...

I think I've seen the same error before once.

[182_blue]

Sounds like a system glitch.

Switch off, lock up, leave it half and hour...

I think I've seen the same error before once.

I was hoping it will reset itself whilst I am at work,  guess I will see later.

[KyleB]

If not try doing a reset by holding the power button until you hear a beep.

[182_blue]

If not try doing a reset by holding the power button until you hear a beep.

Ahh was wondering what the reset was on these,  I did it via the options menu but that didn't sort it.

Thanks