Hello,
Thanks for your answer, I try today and it's ok now !
I don't really understand because nothing change on my notebook (but windows remains a great mystery !!).
Maybe the fact your checked the files ?!
Thans again for the quick response.

Hello all,
Since few days i'm unable to open my files in sweet home 3D online.
I worked for many months without problem but now [:(]
I tried with different PC with no success (windows seven family / windows XP )

Does someone have an idea how to solve this problem ?

Many thanks