CUPS and system-config-printer seem to keep separate printer configuration files/queues. Is there a mechanism in place to automatically sync the two? Here is the problem I am encountering: After I upgraded from FC3 to FC4 I noticed additional printer queues created for the Epson 860 printer attached via a USB port. Using system-config-printer to delete the new hal:///org/freedesktop/Hal/devices/usb_device_xxxxx did not have a lasting effect. After logging out and logging in or rebooting and logging in another hal queue-type would be created. I used Mozilla-Firefox browser to access the ESP CUPS Administration page at http://localhost:631. Deleting printer queues with the ESP Administration utility also had no lasting effect. The deleted USB queue would reappear. Disabling cups-config-daemon seems to stop the creation of new printer queues. However, queues deleted using the ESP utility do not get reflected in system-config-printer. I have to run system-config-printer and delete the just deleted printer queue to keep things in sync. This is becoming a real hassle -- cups, cups-config-daemon, and system-config-printer should work seamlessly together.