Hi, in my Lyx version 1.5.1 the environment "subjectclass" produces the output "1991 Mathematics Subject Classification" instead of the current 2000 Mathematics subject classification (see AMS website).
Thanks, Philipp Schlicht -- GMX FreeMail: 1 GB Postfach, 5 E-Mail-Adressen, 10 Free SMS. Alle Infos und kostenlose Anmeldung: http://www.gmx.net/de/go/freemail