Right Joe just checked it out.
On ignition the GTI logo is appearing on the nav screen however it only seems to appear when the car has not been started for some time. The logo appeared when I left work this evening, the car having not moved for the entire day. When I got back home I turned the screen off and then back on but no logo (this was with the engine still running).
I then switched the engine off and locked the car. 2 mins later I jumped back in the car and started her up but still no logo.
I locked the car again and went back down an hour later. Turned the ignition on and hey presto the logo appeared, albeit for just a coupe of seconds before showing the radio stations.
Hope this helps