Thanks for your response.
So I am not the only one thinking the latest update is worst than before.

For the 757 I have another company's boxed edition and it work pretty good but the 767 it is another story.  :(
Bad thing cause the exterior model and VC are realy great like all other Captain Sim's products, a pleasure to fly, and there're not a lot differences between the 757 (this one which work perfect for me) and 767.
Moreover there are not lots of 767 (another company/CLS is very simplified (not for me), the another company's one is not graphicaly enought for me even if people say it's a piece of art and I don't want to spend €40 or more on an airplane I already have.

I was happy when I found the sentance : "Improved flight saving and loadin".

Please Captain Sim to add a good service pack which correct this big problem.