Vista - WCF X509 Certificate Problem

Hi!

I'm trying to secure my self-hosted WCF service via X509 certificates.

I followed the steps in this MSDN article:

http://msdn2.microsoft.com/en-us/library/ms732391.aspx

but it seems that there's something wrong with my test certificates because
when i try to call my webservice the following exception is raised:

The socket connection was aborted. This could be caused by an error
processing your message or a receive timeout being exceeded by t
he remote host, or an underlying network resource issue. Local socket
timeout was '00:29:59.9531547'.

I created my test certificates like this:

makecert.exe -r -pe -sv MyPrivateKey.pvk -n "CN=xrac131.grz.rbgooe.at"
MyPublicKey.cer -sky exchange

pvk2pfx.exe -pvk MyPrivateKey.pvk -spc MyPublicKey.cer -pfx
MyPrivatePublicKeyExchange.pfx

and installed them in the CurrentUser certificate store using Internet
Explorer.

WCF can find the certificate and uses it but they somehow don't fit
together.

If i turn of security everything works fine.

Another general question: Am i right when i suppose that the server has to
use the .pfx-File and the client only has to use the .cer-file with the
public key?

Any help would be greatly appreciated!

Thanks a lot in advance!

Markus