"It appears now that I might just not have been waiting long
enough, because when I tried it again this morning, and paid
careful attention to what it was doing so that I didn't give up too
soon, the LiveCD did eventually come up, and the rest of the
installation went very smoothly.
"Mandriva is the only Linux distribution I have tried so far
which recognizes the VIA Chrome9 graphic adapter, and set up X
Windows to use the openchrome driver. Adam pointed out that the
version distributed with Mandriva 2009.0 was still unstable, and
gave me a link to a more stable version. I downloaded and installed
that, and the display works absolutely flawlessly! For the first
time, it picked up the 1280x768 resolution without a lot of
struggling with the xorg.conf file, and it starts and runs smoothly
and quickly, as evidenced by the messages in the Xorg.0.log file.
It is truly wonderful - Adam, thank you very much!"