One thing i dont like Peter, is the corners of the top.
This usually means the CCD has some moisture/residue on the sensor, and when it freeezes, it ices up and shows a similar pattern.
This goes away with a clean with alchohol or similar spirit.
In any case, see how you go, and if your still getting nowhere, PM or email me to organise a look at properly. Wont take long either, normally a day and then its sent back to you.
We'll have you churning out images soon.
Need to fix the colour balance too, its just too blue, and maybe why the cameras giving you the blues
. Bad joke....couldnt help it.
Theo