Manage POI Problem

I have recently reinstall TOMTOM 5 on my PDA and when I select Manage POI I find that "Add POI", "Delete POI", "Delete POI Category" are greyed out and the system will not allow me to create a new category - gets as far as specifying the name and selecting the icon for the category then says it cannot create it.

I am also not able to select a point on the map and save it as a POI.

Anyone able to help?

Ta,
Dave

[getsurfers]

Is your mem card set to read only?

If not, then locate the file great-britain-plus_maps.cfg, and delete this file. TomTom will recreate for you when started and you should be OK from there.