There is no any mistake reported when build and install NVIDIA_kernel
dirver and NVIDIA_GLX driver.
glxinfo of XFree86 can provide corrent information after the new driver
is installed.
My OpenGL programs work well without recompilation.But when I rebuild
them, the ld report
                      /usr/lib/libGLcore.so.1: undefined reference to
'__nvsym10421'

The RedHat Linux for Itanium 7.1 installed on my machine has a version
2.4.3 kernel, which  cannot match the requirement of the NVdriver. So I
downloaded and installed the 2.4.18 kernel.
I unpack linux kernel 2.4.18 at ~/linux and build it successfully. It
works well also.

when I build the NVIDIA_kernel driver, I use the following command :
   make SYSINCLUDE=~/linux/include

I have tried several time to rebuild the driver. But the results are
same.