The same bug existed on Debian and has been closed : http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=626050
The fix seems to be backported in version 3.1+dfsg-1ubuntu1 of this package, that should be shipped with oneiric : see the changelog in https://launchpad.net/ubuntu/+source/sweethome3d/3.1+dfsg-1ubuntu1 Installing this package on oneiric makes sweethome3d runnable with default jre (openjdk-6), without the need to install sun-java6. It also works if you install this version on natty (but you have to force the installation with a dpkg --force-depends-version). Anyway, I noticed that 3D performance was much better with the Sun JDK (at least with the one bundled in the .tgz downloadable on the official site : http://www.sweethome3d.com/fr/download.jsp) than with openjdk-6. I'm not sure if I tested the package sun-java6 of ubuntu (it should be the same as Sun JDK). I might be wrong, but it seems to me that Sun JDK has some 3D hardware acceleration (and/or optimization) that is not enabled in openjdk-6. I tested openjdk-7 (in a beta version, some time ago), and noticed that the performance was the same as with Sun JDK. See http://www.sweethome3d.com/support/forum/viewthread_thread,1658 Unfortunately, openjdk-7 will not yet be the default jre for oneiric (still openjdk-6) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/769038 Title: sweethome3d does not start To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/sweethome3d/+bug/769038/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs