Comment 7 for bug 572868

Same here. I'm on an old Compaq Presario 2200 running with an Intel 855GM chip. LiveCD install screen stays on the "keyboard equals human"-icon and then hangs on black. I removed the "quiet splash" option and it hung after attempting to install the wireless cards, but I think that has nothing to do with the problem.

I was able to boot from the LiveCD by following these instructions: http://ubuntuforums.org/showthread.php?p=9219366#4

You also might want to try this, just in case it works for you: http://ubuntuforums.org/showthread.php?t=1463294&page=2#14