what is wrong with 'adduser'?

[Pollywog <pollywog@shadypond.com>]

I am a potatoer and I am having trouble with the adduser command:

root@lilypad:/usr/sbin # /usr/sbin/adduser pguser
Adding user pguser...
Adding new group pguser (1004).
Can't exec "groupadd": No such file or directory at /usr/sbin/adduser line 675.
adduser: `groupadd -g 1004 pguser' returned error code 255.  Aborting.
Cleaning up.
Removing group `pguser'.
Can't exec "groupdel": No such file or directory at /usr/sbin/adduser line 695.

Is this a known problem?

tnx

--
Andrew