Menus from Fedora virtual machine off screen

I don't know if this is a Fedora 25 question or a cygwin X question
since I upgraded at the same time.

Ever since my Fedora 25 upgrade, the menus from programs running on
the Linux box using cygwin x as the X server appear off screen at the
top left. It is impossible to use these menus.

An example is Firefox'smenu, but this happens with many Linux programs.

Is there a configuration option that I am missing in cygwin X?

Welcome to the XWin X Server

Vendor: The Cygwin/X Project

Release: 1.19.1.0

OS: CYGWIN_NT-10.0 CountryPc 2.6.1(0.305/5/3) 2016-12-16 11:55 x86_64

OS: Windows 10  [Windows NT 10.0 build 14393] (Win64)

Package: version 1.19.1-1 built 2017-01-16


XWin was started with the following command line:


/usr/bin/X -multiwindow -listen tcp




Fedora release 25 (Twenty Five)



Thanks
Gulliver

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