Hi Lin, Greatly appreciate your help. I will resize the balloon images because until you mentioned the point, I had sized the whole of the image including the chequered portion which addds condsiderably to the file size. I will also check the laptop video card as you suggest. When i have resized and created a show with the balloons I will let you know how i got on but I am certain you have solved my problem. Many thanks, Bob Copeland