IDS/SCO message file

For the life of me I can not figure out why informix (IDS 7.3 on SCO "Openserver" 5.0.5) is giving me this error: Initializing Dictionary Cache and Stored Procedure Cache... Cannot find message file. Check INFORMIXDIR and DBLANG.FAILED online.log shows no errors and here are the results of `ls ${INFORMIXDIR}/${DBLANG}` # What am I missing?: 4gl.iem 4glusr.iem archive.iem audit.iem cals.iem ccals.iem ccsm.iem ccss.iem cdr.iem cdrcli.iem ceami.iem cerrmsg.txt cisam.iem cli.iem cmiapi.iem cnals.iem cnerm.iem cnet.iem cnetsrv.iem crds.iem csecure.iem cshell.iem csm.iem csql.iem csqli.iem css.iem cutil.iem cxopen.iem cxps.iem dbacc.iem dbacc.lmk dbatool.iem dbised.iem dbised.lmk dbisedh.iem dbload.iem ef77.iem errmsg.txt esql.iem esqlc.iem esqlcob.iem formbld.iem forms.iem ipload.iem isam.iem logmode.iem mls.iem mls2.iem nals.iem necc.iem nerm.iem nesql.iem net.iem netsrv.iem nls.iem olmsglog.iem olserver.iem olutil.iem onbar.iem onperf.iem optical.iem os.iem pload.iem rds.iem rdsterm.iem security.iem shell.iem sql.iem sqli.iem util.iem xopen.iem -mark