Printer install stopped dead by "New Printer" dialogue relentlessy crashing

[Dave M G]

Ubuntu Users,
	I'm trying to install my Canon iP3100 printer, which I have installed
before on other Linux distros, so I know it is possible with my make and
model.
	I found the following web site, which had nice, explicit instructions:
http://www.ubuntuforums.org/showthread.php?t=38995

	All went well until I got to step 8:
8. Setup Printer
-System>Administration>Printing>New Printer

	Whenever I open the "New Printer" window, I get a message saying that
an error has occured, and it dies. Dies as in goes away, regardless of
whether or not I select to "restart application" or not.
	I don't even have time to select any options or do anything. It just
dies the moment I open it.

	What's up with that?

	Any help would be much appreciated.

--
Dave M G