Updating to 3.0.23c fixed it!! I didn't even change my config. I just uninstalled the Ubuntu packages with "apt-get remove samba-common samba winbind", added Samba.com's Debian Sarge repository and did "apt-get update && apt-get install samba samba-common winbind" and it installed the newer packages from the Sarge repo.
This fixed my nested domain groups problem, hopefully it didn't introduce any new ones. I've only done this on my test server. After a little more QA I'll do this on my semi-production server. James Dinkel -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/listinfo/samba