Routing and Remote Access 2k3 & ADSL

In routing and remote access in server 2k3 I am trying to
install a new demand dial interface which is an ADSL PCI
Modem. The problem being that it is not showing on the
select a device menu in the demand dial interface wizard.
The source of the problem I have found is that in the
Ports Properties the ADSL PCI Modem is showing as having
4,294,967,295 ports and when I try to configure the
interface it comes up the error The number of available
ports must be between -1 and -1. Help!!