C3180 all-in-one, custom size paper Options

[malcolmkennedy]

I have experienced 2 problems.
1. Scan button does not work - neither with Vista nor with XP, so it must be a printer related or driver problem.
2. I can't get it to allow me to custom size the feed paper. I go to Printing Preferences, then to Features. In the Resizing Options section I choose Custom in the Size box. The minute I do that, a new window appears with the message
"The custom paper size you have just defined will not become available for selection until you have exited and re-entered the Printing Preferences/Properties."
But that's precisely where I am. If I exit and go back to Properties, I end up with the same result. I can not seem to find a way to define a paper size different from those that are listed.

I'm sure this is something simple, but I am quite baffled.

Any suggestions out there?
Tks

Malcolm Kennedy