How to create only a signing key on card

[Per Tunedal Casual]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi,
I would like to have only a signing key on my OpenPGP Card. (I find an RSA
encryption key of 1024 bits ridiculously short.)

The generate command generated three keys. I edited the key and deleted the
encryption key, fine. But after that everything went bad:

WinPT file manager lets me encrypt to the key! So the encryption key is
still present somehow.

I got "Unusable keyring" when I tried to sign with EudoraGPG.

gpg --card-status gave some strange error messages.

Is the only way to create a signing key on a secure computer and import it
to the card?

What can I do to reset the card?


Per Tunedal
Keyid: 0xAE053BE0
Fingerprint: D70D 9057 A985 4944 2191 995A 2D74 F09D AE05 3BE0

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.1 (MingW32) - GPGrelay v0.959
Comment: Vad är en PGP-signatur? www.clipanish.com/PGP/pgp.html

iD8DBQFCkBkepPsTvNtsBX8RAlwDAJ9UatuRNFESAke3iijomE5Evky/5wCglRKu
Skon+JMdBK5G2kmTSP2iMiY=
=V29A
-----END PGP SIGNATURE-----