After wasting a couple of hours I stumbled on the solution.
Since I had bought an upgrade version of Europe CN I had to reinstall version 8 AND 9, and then the 2010 version (10) using the setup disk and data disk, and then unlocking the maps in each to get the latest version unlocked and working.
I am a computer illiterate and take the easy way out. I recently needed maps of Europe so I purchased them online, loaded on an SD card. They cost me about AU$70 and work like a dream. For me that was the easiest solution. Since becoming a member I have downloaded UK POIs and they really compliment the info on the UK at least.