I think this is a multi-version thing.

I open a file from the camera (jpg). I work on it. I save as pspimage.

Then I do a lot of work and save as jpg.

Now I am pretty sure that if I save as jpg, then as usual I am working with the new file (jpg)

BUT, if I use the jpeg Optimiser, and save using that, I seem to keep working with the pspinage, which I don't want to do, because it's not "standard".

Anyone else comment on this?

Thanks for help.

I am actually starting to post answers here, and not just ask.

Nick