dapper-rc X freezes at black screen picked wrong graphics card

[golfer]

I've got a i810 card on my motherboard at pci:0:1:0, which is bypassed
in the BIOS, and a pci nvidia card on pci:1:9:0, which is activated by
the BIOS.

dapper-rc install cd used the correct nvidia for the installation,
but, when it first booted, it froze when X started.  I rebooted in
recovery mode and had to edit /etc/X11/xorg.conf to the other card.
It incorrectly showed:

Section "Device"
        Identifier      "Intel Corporation 82810E DC-133 CGC [Chipset
Graphics Controller]"
        Driver          "i810"
        BusID           "PCI:0:1:0"
EndSection

I changed it to:

Section "Device"
        Identifier      "Nvidia GeForce4 MX4000"
        Driver          "nv"
        BusID           "PCI:1:9:0"
EndSection
..
Section "Screen"
        Identifier      "Default Screen"
#       Device          "Intel Corporation 82810E DC-133 CGC [Chipset
Graphics Controller]"
        Device          "Nvidia GeForce4 MX4000"
..

and rebooted successfully into kubuntu.  I wonder why the installer
correctly picked the nvidia card, but the X configure script picked
the wrong one?

HTH someone else.

regards,