I experienced a similar problem reproducable by the instructions above. System was a Dell Inspiron 5150 fitted with a GeForce FX.
My display turns white and has black diagonal lines across it. (It looks like the screen is repeating a series of bits). It seems the computer hasn't hung as when moving the mouse I occasionally see the pattern chance slightly. Obviously from this point I am unable to complete the setup. I experienced a similar problem after upgrading to herd 1 although rebooting seemed to fix the problem. -- Feisty Herd 1 - display warps after keyboard layout selection https://launchpad.net/bugs/74959 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs