InfoCard sample configuration problem (WinFx Dec CTP)

Hello,
I have the following certificate configuration:

<clientCertificate findValue="client.com" storeLocation="CurrentUser" storeName="My" x509FindType="FindBySubjectName" />

<serviceCertificate findValue="localhost" storeLocation="CurrentUser" storeName="TrustedPeople" x509FindType="FindBySubjectName" />

On the service side I have the following configuration:

<configuration xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0">
<system.serviceModel>
<services>
<service type="WhoIsService" behaviorConfiguration="serviceBehavior">
<endpoint address="/InfoCard" contract="IWhoIs" binding="wsHttpBinding"
bindingConfiguration="infocardBinding">
<identity>
<certificateReference
findValue="localhost"
x509FindType="FindBySubjectName"
storeLocation="LocalMachine"
storeName="My" />
</identity>
</endpoint>
</service>
</services>
<bindings>
<wsHttpBinding>
<binding name="infocardBinding">
<security mode="Message">
<message clientCredentialType="InfoCard" />
</security>
</binding>
</wsHttpBinding>
</bindings>
<behaviors>
<behavior name="serviceBehavior" returnUnknownExceptionsAsFaults="true">
<serviceCredentials>
<serviceCertificate
findValue="localhost"
storeLocation="LocalMachine"
storeName="My"
x509FindType="FindBySubjectName" />
</serviceCredentials>
</behavior>
</behaviors>
</system.serviceModel>

<system.web>
<compilation debug="true"/>
</system.web>

</configuration>

On the client side the following

< xml version="1.0" encoding="utf-8" >
<configuration>
<system.serviceModel>
<client>
<endpoint name="WhoIsInfoCard"
address="http://localhost:1713/Service/Service.svc/InfoCard"
bindingConfiguration="infocardBinding"
binding="wsHttpBinding"
contract="Client.IWhoIs"
behaviorConfiguration="ClientCertificateBehavior">
<identity>
<certificateReference
findValue="localhost"
x509FindType="FindBySubjectName"
storeLocation="CurrentUser"
storeName="TrustedPeople" />
</identity>
</endpoint>
</client>
<bindings>
<wsHttpBinding>
<binding name="infocardBinding">
<security mode="Message">
<message clientCredentialType="InfoCard" />
</security>
</binding>
</wsHttpBinding>
</bindings>
<behaviors>
<behavior name="ClientCertificateBehavior">
<clientCredentials>
<clientCertificate findValue="client.com" storeLocation="CurrentUser" storeName="My" x509FindType="FindBySubjectName" />
<serviceCertificate findValue="localhost" storeLocation="CurrentUser" storeName="TrustedPeople" x509FindType="FindBySubjectName" revocationMode="NoCheck" />
</clientCredentials>
</behavior>
</behaviors>
</system.serviceModel>
</configuration>

when I run my code I get the following error message: "The identity of the incoming recipient could not be validated."

I don't find what is wrong since the code seems really the same as WCF samples.

Any help

Thanks,
Pierre