DISPLAY ERROR

[cortinas@xxxxxxxxxxxxxxxxxxxxxxxxx ( JOHN CORTINAS JR.)]

Is there something wrong with my configuration if everytime I start
the latest version of ferret it tries to open an X window?  I get the
following error when I'm not on a system that supports windows: 

Error:Can't open display:

Previous versions of FERRET did not do this.  Any suggestions?

Thanks,
John Cortinas
NOAA/OAR/ERL/NSSL