The original problem was that su wouldn't, with a message of either:

        su: setgid: Not owner

or:

        setgroups: Not owner

        su: initgroups failed

With my hat off to the folks who responded (see below) the solution was to reset

the permissions of the su command to:

        -rwsr-xr-x 1 root 6968 Oct 23 1991 /usr/bin/su

as it should have been, and was previously.

I guess I'm not back up to speed, vacation's seem to turn my brain to mush, as I

hadn't thought to check the permissions before I turned to the list for help.

Anyway, many thanks to:

hsafai@esri.com (Houman Safai )

"Stan Barber" <sob@TMC.EDU>

 Neil W Rickert <rickert@cs.niu.edu>

Ian MacPhedran <Ian_MacPhedran@engr.usask.ca>

 "Ric Anderson" <ric@cs.arizona.edu>

for their prompt responses, and a special thanks to

Dave Fetrow <fetrow@biostat.washington.edu>

who reminded me about the need to replace sendmail with the latest patch

release.

Mike Gruen

Pima County

Tucson, AZ