Description of problem:
When setting up an HP LaserJet 4000 connected to /dev/lp0 under current F16, system-config-printer ist stuck at stage "Describe Printer". Running in debug mode, an endless loop of "Got password callback" messages is returned to the shell after entering the root password in order to proceed.

Version-Release number of selected component (if applicable):
system-config-printer-1.3.6-1.fc16

How reproducible:
Always.

Steps to Reproduce:
1. Run system-config-printer.
2. Enter all required information until section "Describe Printer" is reached.
3. Enter printer name, description, and location, press "Apply" and enter root password.
  
Actual results:
Application just sits there, and nothing happens. "Got password callback" messages are returned endlessly to the shell.

Expected results:
system-config-printer completes printer configuration.

Additional info:
None.