GPS on a HTC Touch Pro (TOMTOM)

Hello.

When I try to use the GPS on my HTC touch pro, I can't get it working
with TomTom 7.
Can anyone help me out with the exact required setting for the phone
and for TomTom to get it working properly?
The problem seems to be that TomTom says there is no GPS device
detected. I have set
TomTom to use the internal GPS device, but I can't find any other
additional settings in TomTom for the internal GPS.
In the HTC (External GPS) settings, I have GPS set to automatic
configuration. I've also downloaded the latest GPS ephemeris data with
the QuickGPS program.

Kind regards and thanks in advance for any suggestions, Niek