"IRC channels, LUG mailing lists, and Ubuntu wikis were buzzing
with the news this morning that a recent Ubuntu Xorg update
(xorg-server 1:1.0.2-0ubuntu10.3) crashes the X Window System on
some video hardware. When X is restarted following installation,
affected Ubuntu users get a 'no screens found' error message
instead of X.
"The Dell Inspiron 6400 with an ATI video card, Dell Inspiron
8600 with an Nvidia 5200 card, Dell Latitude D620 with Nvidia
Quadro NVS 110M video card, and Hewlett-Packard NX6125 are among
the systems reported as being bitten by this bug..."