Same happend to me. For some reason I was able to move on to the installation menu and did a full install of Alpha 3. Then I updated with the latest updates and did a restart. Now I am back looking at the black screen with the underscore again.
This is with VirtualBox OSE 3.0.8 r53138 -- Lucid Alpha 3 Live CD goes to blank screen https://bugs.launchpad.net/bugs/531235 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs