Schitzoid behavior on a Cygwin Xemacs

I have a Win32-Native build, but I do my real work in the Cygwin 
environment with Cygwin-Xemacs. 
In several situations - notably if I use a menu command - Xemacs pops up 
a widget for a file-name. 
Regrettably, it exposes the Windows file-system instead of the Cygwin 
mounts structure.  I wouldn't mind a
*Nix-style widget (gtk / lesstif / whatever ) that showed me the files 
as seen by the Cygwin tools, although
I could live without widgets entirely. 

Please advise, at least, how to turn off the darn'd widgets and use the 
mini-buffer.

-- 
David A. Cobb, Software Engineer, Public Access Advocate
"By God's Grace, I am a Christian man; by my actions a great sinner." -- The Way of a Pilgrim: R.French, Tr.
Life is too short to tolerate crappy software!