Where did nv.ko go?

[Arthur Barlow <arthurbarlow@gmail.com>]

I believe that someone else wrote in about it this, but until I shutdown my X server I didn't realize I had the problem.  I logged out, and when gdm tried to reset I get a message saying that it cannont find the "nv" driver.  I have a "GeForce4 MX 4000" card.  Thanks.