Under Linux:
- Update the drivers of your graphic card with the latest available ones, and try to run Sweet Home 3D again.
- If this update doesn't fix your problem, click on this link to run Sweet Home 3D with an older version of the Java 3D library. If it works, 3D performances and rendering won't be as good as with default Sweet Home 3D version.
- If this solution still doesn't work, you may finally want to use Sweet Home 3D without 3D features, by reading the answer to the next question.