Word 2007 won't let me print on legal size pa

Hello,
We just got this new computer with vista and word 2007 last year and this is the first time I've tried to do this. But, I can't print my Christmas letter which has text and photos on an 8x14 piece of paper. It looks fine when I open up the file but when I go into print preview or try to print it, the bottom 2 inches disappears. It's not continued onto another page. I have the printer and everything set up for 8x14 but it just won't print that last 2 inches. I tried opening an old Christmas letter and print that one since i'ts also 8x14 and now it has the same problem. I don't know if its the computer of if its word. It's as if it refuses to let me use 8x14 but it doesn't push the rest of the letter to another page, it just doesn't show up. I tried saving it under word 2003 but still won't work.