Thank you. That is exactly what the problem was. After putting up my post, I uninstalled everything and started again. I installed again at 64 bit and now everything is working perfectly again.

Hi everyone,

I am new to this forum but I have been using Sweet Home 3D for over 12 months for personal use.

Until a few weeks ago, I was using version 6.6, then updated to the latest version 7.4.

Since updating to the latest version, I have had nothing but trouble. The files I have created with ...