Thomas,
Smart cards are a bit outside of the scope of support here in Answers and the TechNet community is much more equipped to support your issue:
http://social.technet.microsoft.com/Forums/en-us/w7itpronetworking/threads
I recommend posting your question on the forums there and someone should be able to better assist you.
Sorry I can't be of more assistance!
Cody C
Microsoft Answers Support Engineer
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