I think the trick is always check the SAVE AS box. Even when the right name is already written. I thought, the checkbox SAVE AS, is there, to create a new name and not to overwrite the choosen design. So I never checked the box, cause, I didnt want to create an new name.
But it seems, to save changes to the same design, I have to check the box, too. This is a little strange. Or am I wrong? maybe you can fix that in an update:-)
thanks for maken me doing it step by step, so I found the reason why.
Thanks a lot,