Navigon on HTC HD

Good morning All !

I have just successfully installed Navigon 7.4 on a HTC HD and am impressed, only one thing is not good. The map is shown in landscape form and the street names take half of the screen so I cannot follow the yellow road (direction to go). I tried to disable the "street name" function but they remain on the screen with an arrow on the left (direction to turn). How can I completely disable the street name function so I can see the map where I am driving ??

Many thanks in advance,

Apextwin