I think I have finally got on top of the variables with EasyHDR.
Here is an image of the Lagoon and Trifid 10MB.
http://d1355990.i49.quadrahosting.co...09_08/lg30.jpg
Let me know what you think.
It was Alex (Alexn) that pointed out where I was going wrong. Sometimes when you are so close to something you cannot see clearly! In my blindness I was tending to use too much compression.
Bert