I was able to print the card on another computer in the house that has the same browser version. But I will upgrade anyway.
Another question, when I did print the card on another computer, it did not print the background colors. I saw on the example where Cathe checked those boxes, but I can't find where I can change that on my computer. She said that she explains where to do this on the STS main page, but I don't see the instructions there.
Thanks so much for your help,
Lauren