Upgraded Mythbuntu from 10.04 to 11.10 - Now no GUI display

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http://askubuntu.com – Updated this weekend from 10.04 to 11.10 and now when I boot, I get the standard "Mythbuntu" boot screen then sections of text, then blank screen, then text, then blank scree, etc until I finally just get a black screen. I am Running an ATI video card HDMI out to TV. I have tried other TV's, VGA Monitors, etc, all yield the same result. How do I at least stop the boot process from loading the GUI and dumping me into CLI so I can start to fix this thing? Thanks. (HowTos)