This bug was fixed in the package system-config-printer -
1.1.17+20100217-0ubuntu11
---
system-config-printer (1.1.17+20100217-0ubuntu11) lucid; urgency=low
*
debian/patches/77_dnssd-backend-has-priority-against-ip-based-backends.patch:
Let entries for the "dnssd" CUPS backend
** Attachment added: "Dialog Screenshot"
http://launchpadlibrarian.net/42408947/printerdialog-multi.png
** Attachment added: "BootDmesg.txt"
http://launchpadlibrarian.net/42408288/BootDmesg.txt
** Attachment added: "CurrentDmesg.txt"
http://launchpadlibrarian.net/42408289/CurrentDmesg.t