Error messages when generating new keys

[Olivier N.]

 > Please describe exactly what you are doing and what versions 
of GnuPG
 > are you using.  Are you using a smartcard?  Which one?

Hi,

What i did:

1. I installed gnupg2 [1] on my linux box [2]
2. I tried  "$ gpg2 --gen-key", chose default options
    and entered my infos (email address, name,…)
    and I got:
       gpg: problem with the agent: Bad CA certificate
       gpg: problem with the agent: Invalid card
       gpg: Key generation canceled.

Am I precise enough or do you need more info, log,…?

Thanks in advance for your help!

Olivier

[1] $ gpg2 --version
gpg (GnuPG) 2.0.17
libgcrypt 1.4.6
Copyright (C) 2011 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later 
<http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Home: ~/.gnupg
Supported algorithms:
Pubkey: RSA, ELG, DSA
Cipher: 3DES, CAST5, BLOWFISH, AES, AES192, AES256, TWOFISH, 
CAMELLIA128,
         CAMELLIA192, CAMELLIA256
Hash: MD5, SHA1, RIPEMD160, SHA256, SHA384, SHA512, SHA224
Compression: Uncompressed, ZIP, ZLIB, BZIP2

[2] $ uname -a
Linux my-desktop 2.6.38-2-686 #1 SMP Thu Apr 7 05:24:21 UTC 2011 
i686 GNU/Linux