No contacts found with WDS3.0/OL2007

[Dan]

Hello,
Outlook 2007 and WDS 3.0 installed. Searching for messages works perfectly.
However, WDS seems not to find any contacts when I search for them in the
contacts folder. I have not found any specific setting to enable contact
folders for indexing. Thus I assumed that the whole contents of the PST and
OST files are being indexed.

Do I miss something here?

Thanks for any pointer

Dan