I don't know anything how to fix that, but you should always be able to get older drivers from
www.nvidia.com too. At least I wget some old files from nvidia.com if I install the NV driver module (debian). And if I recall correctly, rpms for RedHat, Mandrake and SuSE recides on nvidia.com with link to old releases.
Hope this helps (and that I'm correct
)
Bye