Trouble installing the nVidia drivers

Hi all. I am trying kernel 2.6.15-rc5, which I downloaded from the SuSE ftp site. When trying to install the nVidia 8178 drivers, the nVidia installer fails and in the nVidia error log file I see an error message about the kernel lacking the vmap() function. Since I tried to "slim down" the kernel, it is possible I did not set an option I should have. Could anybody comment on this? Regards, Gus Fantanas -- Running 64-bit Linux on AMD64