I ran across this error on this mirror while doing updates. Only happened on this particular mirror. Others worked fine. (2/196): system-config-printer-gui-0.6.116.10-1.2.i386.rpm 0 B 00:00 ftp://mirror.daemonbox.net/pub/centos/4.6/os/i386/CentOS/RPMS/system-config-printer-gui-0.6.116.10-1.2.i386.rpm: [Errno -1] Package does not match checksum Best, John Hinton