110 About Drivers and System Resources
b. When a prompt identifies your pcmcia.sys file as an OEM-installed file
and asks you to overwrite the version of the file on your system with
the service pack version, click the No button.
If you install any future service packs on your computer,
make sure that, when you are prompted, you do not overwrite
the pcmcia.sys file, or you may be unable to use your
computer.
If you install SP4 from any source other than your computer’s hard drive, the video
driver that was installed on your computer at the factory is overwritten. After you
install the service pack, you must reinstall the video driver the first time you restart
your computer, see “Changing the Video Driver” on page 88 for more information.