I´m having a big problem with sewwt home 3d and I try to describe it here, also if it´s a bit hard to do...:
well, I start the program and the plan of my flat. When I move my mouse, the screen starts reproducing my plan again and again and then disapears until it gets repoduced again. Look at the Pic:
As Puybaret suggested, most problems of the kind you described are caused in one way or another by the graphics card or the graphics driver. There's a section in the FAQ about all kinds of video problems and solutions.
You didn't mention which operating system you are using. In rare cases the version of Java you are using can cause problems. You may try to uninstall SH3D and all versions of Java, then install SH3D again, using the installer version from the Download page.
I had Sweet Home 3D on my computer, but installed the latest version yesterday and now it crashes every time with a 'fatal error' message telling me to upgrade my graphics card... I can't upgrade my hardware though.
Sweet Home 3D doesn't require you to change your hardware, but suggest you to update the driver of your graphics card (the program that makes it work in the system).
Same problem here - GTX 1070 / Intel UHD 630, win10. All drivers up-to-date. Newest version of SH3D (6.1.2) - attempted uninstalling and replacing with version 5.7 and the same issue occurs.
If you are under Windows 10 64 bit, run again the installer and select the 32 bit option in the screen that lets you choose the installation folder. It may solve your issue.
