ok, sorted it. doh !
previously I had set the defaults in Paint with
very small image attributes so that on loading a chart
the attributes would always expand to the size of the image being loaded.
But I have clean installed windows !
so all the defaults have been reset. In the case of Paint
the default size is 1024x768 !
Which means that regardless of the size of the image, the frame
was preset to 1024 etc. And of course, its the frame size that is critical.
I have now reset to my small size.
As a result, the charts and the frames are all smaller than 1024 etc....
So, having been a pain and asked you to increase the 1000x1000
it is clear that it was unnecessary.
And that is why I had not had any problems previously.
mea culpa