I tried by launching the installer version. Its started as before, this time a color modal window comes up with Sweet Home 3D, then it disappears. And then....nothing, as before.... [:-/]

<r>[:(] I downloaded the installer package, ran it and indicated that I wanted it loaded to a volume (not the same as where the system lies) where all my third-party applications reside. I have Java 5 update loaded as well. I click on the application and it does launch, it bounces on the dock twice ...