Need advice on printing from Microsoft Publisher

I use Publisher to create business cards, and then print them on an
Avery form with 10 cards per sheet. Until recently, Publisher printed
10 cards per sheet, in 2 columns of 5. Now it only prints 4 in a
single column centered on page. I've tried to change settings under
Print\Page Options, but cannot change it back to 10 cards per sheet.
Have also tried to select an Avery form under Page Setup, but the
business card form (or anything close to it) isn't there.

Any suggestions? Thanks.