Hi Paperdigits
Thanks for your reply.
I just checked the size of the flat files and they are all 22846KB. I deleted these flats and then replaced with different flats. Unfortunately, same result. I then deleted those flats and used 10s instead of 5 s flats. Again, same result.
I am guessing that I do not understand the problem so this issue will continue to happen?.
If you have a suggestion, would be appreciated.
Macca