Guys I need help.

When I run onmonitor I come up with the following error

[informix@Nigbill3] > onmonitor
Program stopped at "tb4_main.4gl", line number 71.
FORMS statement error number -1170.
The type of your terminal is unknown to the system.

I am sure my TERM is ok, cos I am using it on anothe system.

When I run oninit -ivy, it runs successfully.
Can anyone tell me whats going on here.

Thanks

TERM=vt100
TERMCAP=$INFORMIXDIR/etc/Termcap
export TERM TERMCAP