[ubuntu] Blank Screen on Dell Precision 360

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http://ubuntuforums.org – I have used RHEL for many years at work, so I want to install Ubuntu on a PC at home. I'm a noob at this. Created disk image of Ubuntu 12.10, loaded it into the Dell Precision 360 (force a CD startup, BIOS battery is dead), reads disk fine, conencts to network, etc,. gets to the Ubuntu desktop where I am asked to "Try..." or "Install...". I Navigate around first, though some of the icons on top bar. Eventually I click the "Try..." button. It goes through some gyrations, then eventually ends up on a black screen. I tried clicking where icons at left on desktop mi (Hardware)