Thanks for your comment.

- Hardware acceleration is on Full.
- Graphics card driver reinstalled.

But it does not work.

I haven't updated the graphics card driver to the latest version because I don't think it necessary. With currently version installed, everything was ok before; and now should continue to go ok too. Especially after having reinstalled again.

I will try third option (SweetHome3D.l4j.ini). I hope that works.

Fourth option (Sweet Home 2D) is not an option for me.

Thank you again.
I will post the results.