I updated the cups packages via the Update Manager. Now the new 1.2.1-0ubuntu1 packages are installed.
I installed a printer using the http backend - and got the usual error. Here is the output of the (standard) cups error_log when I tried to print a test-page from the gnome-cups-manger directly after installing the printer: E [08/Jul/2006:16:25:45 +0200] Creating missing directory "/var/run/cups/certs" E [08/Jul/2006:16:55:10 +0200] CUPS-Add-Modify-Printer: Unauthorized E [08/Jul/2006:16:55:18 +0200] CUPS-Delete-Printer: Unauthorized E [08/Jul/2006:16:55:38 +0200] [Job 8] No %%BoundingBox: comment in header! E [08/Jul/2006:16:55:40 +0200] [Job 8] Print file was not accepted (Bad Request)! E [08/Jul/2006:16:55:40 +0200] PID 6600 (/usr/lib/cups/backend/http) stopped with status 1! -- client 1.2.0 to 1.1.2x server over IPP: network printing regression https://launchpad.net/bugs/42802 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs