Try highlighting the boot menu entry of the new kernel, press Tab to edit it, add a 2 at the end.
Thats not what I did but that is cool. I did not know you could do that.
I added a TUI boot option to lilo.conf and downgraded to the 'nv' driver. Now I can boot both kernels.
Install a kernel module only, and do not uninstall the
existing driver. This is intended to be used to install
kernel modules for additional kernels (in cases where you
might boot between several different kernels). To use this
option, you must already have a driver installed, and the
version of the installed driver must match the version of
this kernel module.
The driver I want to use is NVIDIA-Linux-x86-173.14.22-pkg1.run downloaded from nvidia.
So to run this driver on the newer kernel and still be able to boot into a GUI with both kernels I should run
sh NVIDIA-Linux-x86-173.14.22-pkg1.run -k
Is that correct?