non-stable sort with > 1 key

[Greg Minshall]

hi.  i want to sort first alphabetically on field 1 then numerically on field 
2 (so, field 2 is the secondary key).  it seems that when running, field 2 
becomes the major key.

i've tried:
sort -s +1 -n +2
sort -s +1 -s -n +2
sort -s +1 -sn +2
sort -n -s +1 -s +2
sort -k1 -s -k2n

here is what i'm running:
----
FreeBSD gregtx 6.1-STABLE FreeBSD 6.1-STABLE #2: Tue Oct 31 09:50:20 PST 2006  
   address@hidden:/usr/src/sys/i386/compile/GENERIC  i386
sort (GNU coreutils) 5.3.0-20040812-FreeBSD
Written by Mike Haertel and Paul Eggert.

Copyright (C) 2004 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
----

i wouldn't think i should even need to specify "-s" if i want a major key 
followed by one (or more) minor key(s).

any thoughts?  maybe i'm just braindead (always a possibility).

Greg Minshall

ps -- when did the "+m.n" format become deprecated?  Posix?  or...?

pps -- i just tried this with coreutils-6.9 and get similar results.