Klaus

I'm sorry I upset you. Nothing deliberate but a great element of confusion. In fact I think I'm getting there or maybe even there due in large part to the site pointed to by Egg. This has two small graphics (.jpg) both the same size physically and in file size but one is 200dpi and the other 2000dpi. By having a look at the properties of these graphics and spending some time thinking about it I believe I understand what is going on.

My partner will be delighted. Anyway thanks for your understanding and patience in explaining the subject. I will nevertheless keep a close eye on this thread.

Tracey