There is a possibility to change the display size in the NCK.ini file (Directory: C:Program filesNavigon GmbHNCK 5.0NcK.ini, also see manual at page 96). To change the sizes, enter the following lines at the end of the file
[Dimension]
Width=
Height=
OffsetX=
OffsetY=

Insert your preferred values into the variables.

- Ensure that the program SIRFDEMO and your gps routing software do NOT run at the same time.
- Some notebooks do not follow the USB-specification and have to less power at the USB-port. You can verify such behavior by testing the mouse on a different computer.

- check the Com Port you choosed is right
- at "Comunications Settings" and "Baud Rate" choose the value 38400

1.) Set Com-port to a value between 1 and 4 in hardware manager in the USB bridge. 2.) Let Fleet or Truck Navigator search automatically for the GPS settings.

For fixing the positioning-problem there now is a firmware update available : CTFGPS-3 Firmware Update 13-03-2009

Deactivate "Serial Microsoft Ballpoint" in hardware manager under "Mouse and other pointing devices".
Background :
At startup time Windows built-in Plug-and-play mode tries to detect the GPS receiver and in error gives it a mouse driver.

Update 13.10.2008 :
This tool will also fix the problem :Com Port Plug and Play Blocker