Changed the OS to Windows 8 (customers preview) and it is working great. Everything is much smoother than with Windows 7. The only thing is, I cannot get the Ntrig software to work. I found some older information on several web sites (like running dpinst as admin etc), but it is not really working.
Looked at the Ntrig web site, but he drivers and programms there are older than the ones on the Fujitsu page.
Did anyone succeed in this?
Oh yes, and I made a clean install, because with the update option nothing worked at all.