Gnupg doesn't work anymore?

Today I noticed that the new version of gnupg does not decrypt messages correctly anymore.
With Mutt(-ng) I am not able to decrypt messages. Ok I thought it is a misconfiguration of mutt,
but if I try to decrypt local files gpg decrypts it but at the end of decryption it hangs and
gives me this message:
gpg: checking the trustdb
gpg: waiting for lock (held by 5163 - probably dead) ...
gpg: waiting for lock (held by 5163 - probably dead) ...

But there is no process with this ID.
Here is my gpg information:
gpg (GnuPG) 1.4.0
Copyright (C) 2004 Free Software Foundation, Inc.
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions. See the file COPYING for details.

Home: ~/.gnupg
Unterstützte Verfahren:
Öff.Schlüssel: RSA, RSA-E, RSA-S, ELG-E, DSA
Verschlü.: 3DES, CAST5, BLOWFISH, AES, AES192, AES256, TWOFISH
Hash: MD5, SHA1, RIPEMD160, SHA256, SHA384, SHA512
Komprimierung: nicht komprimiert, ZIP, ZLIB, BZIP2


Hints are welcome. I reported this issue to the debian bts.