Thanks for responding. The answer to your question is yes--after I changed my default video card from ATI to VESA, the problem went away.
However, I don't consider that this closes the bug, because Ubuntu shouldn't misdetect a videocard in the first place. For the record, my video card is an ATI mobility radeon 7500. However, in spite of its name, this card clearly does NOT work with the ATI driver and should NOT be auto-installed by Dapper during installation from the live CD. VESA should be installed instead. Thanks for your attention, Dave -- Screen freezes black and locks up randomly https://launchpad.net/bugs/50501 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
