[ubuntu] Hangs with Black screen and moveable mouse cursor

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http://ubuntuforums.org – Boot problems with 3.2.0.-44-generic (If I remember well, this is 12.04) Sequence when I boot: Normal BIOS screen Boot loader Brief 'purple' screen Black screen with mouse moveable cursor That's it. Nothing more. Except when I hit Print-Screen key on KB, then up pops a window asking me do I want to copy to clipboard or save! I can close this window with ALT-F4. When I boot into Ubuntu recovery: - DKPG runs OK - FAILSAFEX option + Resume leads to a reboot and the same black screen When I boot with previous Linux version selected from Boot loader screen, same black screen (Hardware)