XFig, faulty (e)ps export

[Gert Bartholomeeusen <gert dot bartholomeeusen at st-catherines dot oxford dot ac dot uk>]

Hi Cygwin users,
	A while ago I installed Xfig 3.2.3c from Pierre Humblet's
site.  In the mean time I have been drawing to my heart's content, but
exporting my fig files to eps, combined LaTeX/PS, etc. seems to fail in my
case.  XFig does the export and creates the relevant files, but when I
open them, eg with Ghostview, I get the following error message:

***********
AFPL Ghostscript 6.50 (2000-12-02)
Copyright (C) 2000 Aladdin Enterprises, Menlo Park, CA.  All rights
reserved.
This software comes with NO WARRANTY: see the file PUBLIC for details.
Displaying DSC file C:/reports/esso/illustide.eps
Displaying page 1
Loading NimbusRomNo9L-Regu font from
C:\bin\gs\fonts\n021003l.pfb... 1936736 579696 1617312 334048 3 done.
Unrecoverable error: undefined in NaN
Operand stack:
    --nostringval--

--- Begin offending input ---

--- End offending input ---
file offset = 3823
gsdll_execute_cont returns -21
***********
	I suppose I must have missed something in the installation
procedure, but unfortunately I cannot track the problem down.  Is there
anybody out there with some suggestions?
		Cheers,
		  G.