I found that the workaround referred to earlier is incomplete in 100.14.xx, supporting reports of a regression since 1.0-96xx; could those of you seeing problems with 100.14.11 try the attached (experimental) patch? It should improve stability with NV44 and G72 based graphics cards on certain ATi chipsets.
To apply the patch, use:
# sh /path/to/NVIDIA-Linux-x86-100.14.11-pkg0.run --apply-patch /path/to/NVIDIA_kernel-100.14.11-336672.diff.txt
# sh NVIDIA-Linux-x86-100.14.11-pkg0-custom.run