I also have a Nikon D40x and I can confirm that is not working on gutsy final.
$ uname -a Linux abel 2.6.22-14-generic #1 SMP Sun Oct 14 23:05:12 GMT 2007 i686 GNU/Linux
I also have a Nikon D40x and I can confirm that is not working on gutsy final.
$ uname -a
Linux abel 2.6.22-14-generic #1 SMP Sun Oct 14 23:05:12 GMT 2007 i686 GNU/Linux