Hi,

I've started trying to use Excel's contour charts but the results are
very poor and I'm not too sure how to improve them.

a) There is always a massive gap around my chart. All I get is a
narrow rectangle in the middle of the screen with loads of empty white
space above and below it. How do I make it take up the whole screen?

b) The choice of colours is not great. How do I make it do something
more sensible, such as increasing the intensity as the values increase?
Thanks,

Anon.