i just bought a canon i850 and have been using iPhoto to print out WONDERFUL 4x6 photos after using the constrain tool. BUT, I also recently bought greeting card paper that is 6.25 x 9.00" and cannot seem to get the printer to print properly. side to side is aligned, but verticle seems to shift the image down 2" despite customizing the paper size to 6.25x9. Does anyone know how i can get the printer to recognize the correct paper size??? Thanks in advance!!