Yea Doug I did see Peters response, and I to am not sure of what he means, but we will get to the bottom of it some how.
I have been playing around with Image Plus all night and you would be amazed at what I have found, didn't even know you could convert raws to tiffs and other formats till just about 3 minutes ago.
Thanks for the vote of confidence Mate, I'll get there.
And yes that central bright stuff has always been there, and I have hidden it, or processed it out, that is why my images are always pretty dark.
Leon