why i can not convert gmf file to eps file

[chengs]

Hi everyone,

I now meet a problem about gxeps command.

The attached file is generated by PC-GRADS 1.8. Now I want to convert
the file from gmf format
to eps format. When I use "gxeps" command to convert the file on
Linux OS, it says:

Fatal error: Invalid command "-1025" found in metafile"figure6.gmf".
    Is "figure6.gmf" really a GrADS (v1.5 or higher) metafile?

Does anybody have any idea about this?

Thanks in advance.
**************************************
Guangshan Chen
Center for Climatic Research
University of Wisconsin-Madison
1225 W.Dayton Street
Madison, WI 53706  USA

phone : 608/890-0907
fax      : 608/263-4190
email  : gchen9 at wisc.edu