GnuPG signature check failed on libusb-1.0_1.0.6-1~bpo50+1_i386.changes gpg: Signature made Sat Jan 9 02:15:54 2010 CET using DSA key ID 2ECF984B gpg: Can't check signature: public key not found (Exit status 2) libusb-1.0_1.0.6-1~bpo50+1_i386.changes has bad PGP/GnuPG signature! Removing libusb-1.0_1.0.6-1~bpo50+1_i386.changes, but keeping its associated files for now. Greetings, Your Debian queue daemon