Lame gpg question...

I admit I know nothing about gnupgp. But I can't get this kernel source to verify, and I've had it work before. Cut for excessive, shameless screen captures...

markb@deinon:/mnt/cdrom$ gpg --delete-key Kernel
gpg (GnuPG) 1.0.6; Copyright (C) 2001 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.

pub 1024D/517D0F0E 2000-10-10 Linux Kernel Archives Verification Key <ftpadmin@kernel.org>

Delete this key from the keyring? y
markb@deinon:/mnt/cdrom$ gpg --keyserver wwwkeys.pgp.net --recv-keys 0x517D0F0E
gpg: requesting key 517D0F0E from wwwkeys.pgp.net ...
gpg: key 517D0F0E: public key imported
gpg: Total number processed: 1
gpg: imported: 1
markb@deinon:/mnt/cdrom$ gpg --verify linux-2.4.19.tar.sign linux-2.4.19.tar.gz
gpg: Signature made Thu Mar 20 17:31:00 2003 CST using DSA key ID 517D0F0E
gpg: BAD signature from "Linux Kernel Archives Verification Key <ftpadmin@kernel.org>"
markb@deinon:/mnt/cdrom$ gpg --list-keys
/home/markb/.gnupg/pubring.gpg
------------------------------
pub 1024D/517D0F0E 2000-10-10 Linux Kernel Archives Verification Key <ftpadmin@kernel.org>
sub 4096g/E50A8F2A 2000-10-10

markb@deinon:/mnt/cdrom$

I always get Bad Key, even though I've deleted the key and redone it. Any idea what's up?
BTW, I know that's an "old" kernel, don't knock it, heh