gpg --change-pin doesn't work for me

[Wolfgang Rosenauer]

Hi,

I've got a new OpenPGP Smartcard and was able to add my GPG subkeys to 
it. But I can't change my pin via gpg --change-pin.

I enter my old pin and my new pin twice but afterwards get only "Error 
changing the PIN: Allgemeiner Fehler".

The GPG version is 1.4.0.
Any ideas how what the problem could be or recommendations how to find 
the cause for the problem?

Wolfgang