Well I've cracked it using the 'agressive' method given in https://wiki.ubuntu.com/X/Troubleshooting/FglrxInteferesWithRadeonDriver
to fully remove fglrx and re-install the radeon driver. Now I get 3D unity :) I don't know where my system got screwed up. I had to do a full reinstall for Lucid (keeping just my /home) and have done what I think were bog standard upgrades to Maverick and Natty. ** Changed in: unity (Ubuntu) Status: New => Invalid ** Summary changed: - After upgrade to Natty Unity 3D is not available but it is if run from Live CD + [Solved] After upgrade to Natty Unity 3D is not available but it is if run from Live CD -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/775960 Title: [Solved] After upgrade to Natty Unity 3D is not available but it is if run from Live CD -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs