loaded a new "aquired"
version of Navteq yesterday, on the way to work this morning the ice warning came up every 30 seconds on my 20 minute journey to work. Bloody annoying! Is this due to the new disc or a coincidence with another fault? It seemed to be timed too accurately to be a random problem tbh. Anyone else had this? Ta.
any tip on "aquireing" 
No discussion on distributing copyrighted material on this site I'm afraid, so all I can do is point you to the Navteq website.
Or German fleagay. Writeable media really is not the way to go with these head units. Some members have picked up genuine 08 european discs for £40! But for the impovement it gives you i would save your money and stick with your current version.
Other than map updates, what improvement can a map update provide :-/
I have been told, but have no proof, that part of a (genuine) upgrade disk
may contain firmware upgrades as well as map changes. On first insertion of the disc the system will complete the firmware upgrade then continue as normal, and never needs to redo the upgrade......
As I say .. no proof of this at all .... just how I believe the system works.