Not familiar with Linux so I assume Windows?
What version of Sweet Home 3d and did you install the 32bit or 64bit? (see the About dialog box)

Most likely you must update your graphics driver (see this post: https://www.sweethome3d.com/support/forum/viewthread_thread,11888_offset,100#58297 )
And make sure you installed the latest 64bit version (7.1).