Video drivers for old Compaq

Hi,
I acquired an old Compaq Presario 1621 laptop from a company that was
throwing it out, of course they wiped the hard drive and had no
install/restore CDs, etc. for it. I put Win 98 SE on it but the generic
video drivers are terrible. I searched the net for the drivers and found
ones by NeoMagic that seem to work OK except for one thing - if you shut the
computer down, it reverts to the generic Win98 drivers and you have to
re-install the NeoMagic drivers every time you start it up. Does anyone
know how to solve this problem?

Much thanks for any help

Bevin