Thanks for understanding Fredderf.
The NC is 9.510.1234792.1 OS 842337 (2039, 4-4-2013)
When I purchased it was fitted with the map Europe_Central v965.7250
I've put this map back again and the device is working again. In the mean time I've downloaded a newer Fastactive.exe that works fine.
I'll download the suggested maps and other stuff and follow your instructions, so I'll keep you updated.
Thnx again mate.