Well, it is showing up with two processes in the windows task manager, 
with one consuming 15% or so of the CPU, but the icon never appears in 
the task bar.

The system is a fresh install of cygwin 64 bit version on a new laptop - 
see attached cygcheck.out.

To reproduce this the x server is started with the "XWin Server" entry 
under "Cygwin-X" on the Start Menu.

The menu actually worked for me in the beginning and I managed to 
pinpoint what broke it. Originally I had only xorg-server, xinit and 
xclock installed. That worked, the x server and the menu came up 
quickly, but xclock complained about missing fonts. So I installed the 6 
xorg-x11-fonts-* packages. That broke it.

I uninstalled the six fonts again and reinstalled them one after the 
other. With all except
    xorg-x11-fonts-ethiopic
installed the menu keeps working as expected. No, I didn't try yet if 
the ethiopic font breaks it again when I install it.

   Volker

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