pcm initialisation issue

[SRW]

Hi Guys - i have the PCM - with the integrated phone (sim card slot) and nav. I have 2 discs dated 2001 and 2002. But the sat nav comes with the error - sat nav not initialised when i enter the discs. To the best of my knowledge they are original - i have the cd cases etc.

Everything else works, computer - radio cassette etc - just no sat nav.

Any ideas or possible fixes???????

cheers in advance