cisco log entry

What does this error mean on a cisco switch? I only get it on a certain model of switch with a certain ios image (a newer image doesn't give the error). It happens when the configuration is saved. Oct 18 16:40:21.365 EDT: %PARSER-3-BADSUBCMD: Unrecognized subcommand 32 in sg-radius command 'load-balance' I'm going to upgrade the ios on the last few switches soon so probably won't see the error again, but I'm just curious if it's something I should care about. This is with 2 Ubuntu Lucid servers using FreeRADIUS version 2.1.8. I used the "per user privilege level" user example and the "Config Sample #1" cisco device example from http://wiki.freeradius.org/Cisco (which was VERY helpful).