I'm having the same problem too; selecting the 'Guest session' causes the screen to go blank and the PC becomes unresponsive. The only option is to power it off; logging in via SSH doesn't work - I can't even ping it once it locks up.
Like Robert above, I've got a dual-head setup with fglrx. I'm running a clean install of Intrepid. -- Black screen after clicking to start a Guest Session https://bugs.launchpad.net/bugs/266911 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