KMEM Problem With OIDENTD

[Dominique SA]

Hey guys, I'm using FreeBSD 5.4, with oidentd 2.0.7 and PF. I can run oidentd fine but when i try to run it with the -m flag (masquerade flag) it tells me:
Fatal: Can't open kmem device: No such file or directory
Though:
mem.ko module is loaded and:
crw-r----- 1 root kmem 244, 1 Jun 24 16:06 /dev/kmem

note: when i run oidentd, i run it with the following flags:
-d -f -m -l 20 -u root -g kmem -i (interactive mode so i can see if i get error messages, etc)
note 2: this was posted in freebsd-questions, but it looks like this list is for more technical questions

any ideas on how to fix this? 
Thanks