I'm also getting those errors so i changed the status of this bug to confirmed. Please take note that i've also got a installed Epson DX Printer but i don't think that might be the cause for our troubles here. If i can be of any assistance please let me know by e-mail.
** Changed in: gnome-cups-manager (Ubuntu) Status: Unconfirmed => Confirmed -- adding or preferences crash https://launchpad.net/bugs/43416 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs