What happened to my nvidia driver and where did it come from anyway?

Which package does nvidia.ko come from on debian Ubuntu (7.04) - as no package claims ownership when running dkpg -L . How to I regenerate/recreate nvidia.ko ?? I get errors in dmesg: nvidia.ko not found

It is generated by the lrm subsystem - linux-restricted-modules-2.* (Note: the module creation is controlled at bootup by /etc/default/linux-restricted-modules-common - make sure you haven't messed that filei - the modules created by /sbin/lrm-manager into a ramfs and mounted onto /lib/modules/2.6.XX-XX-generic/volatile) - why doesn't dpkg know??? (I guess since they're dynamic dpkg would need some more dynamic DB of such files...)

The nvidia.ko, nvidia_new.ko, nvidia_legacy.ko are loaded by the shell script /sbin/lrm-video (called from /etc/modprobe.d/lrm-video) based on [dot]trigger files in /lib/linux-restricted-modules/ e.g. .nvidia_new_installed