Tried to fix "Doing vfork: resource temporarily unavailable" error with Emacs, now can't start X server

["David M. Karr" <davidmichaelkarr at gmail dot com>]

Cygwin 1.7.8 (and 1.7.9), Win7SP1.

I was having issues with my Emacs startup occasionally failing with  
"Doing vfork: resource temporarily unavailable".  I found a link that 
alleged to have the solution to this 
(http://blog.cottee.org/2008/05/cygwin-emacs-problems.html).

I followed these steps, although when I looked at "libncurses7", I saw 
it was set to "Skip", and that I had versions 8, 9, and 10.  So, I set 
those to reinstall and continued the update.  It also updated some other 
things, including updating me from Cygwin 1.7.8 to 1.7.9.

Now, when I run "startxwin", it chugs for a bit and then presents an 
error dialog saying "Failed to activate core devices".  The log file 
contents follows this.  It fails like this every time now.
-----------------------------------
Welcome to the XWin X Server
Vendor: The Cygwin/X Project
Release: 1.10.0.0
OS: Windows 7 Service Pack 1 [Windows NT 6.1 build 7601]
Package version 1.10.0-1 built 2011-03-15

XWin was started with the following command line:

X :0 -multiwindow

ddxProcessArgument - Initializing default screens
winInitializeScreenDefaults - primary monitor w 1920 h 1080
winInitializeDefaultScreens - native DPI x 96 y 96
[    46.020] (II) xorg.conf is not supported
[    46.020] (II) See http://x.cygwin.com/docs/faq/cygwin-x-faq.html for 
more information
[    46.020] LoadPreferences: /home/David/.XWinrc not found
[    46.020] LoadPreferences: Loading /etc/X11/system.XWinrc
[    46.020] LoadPreferences: Done parsing the configuration file...
[    50.419] winDetectSupportedEngines - DirectDraw installed, allowing 
ShadowDD
[    50.419] winDetectSupportedEngines - Windows NT, allowing PrimaryDD
[    50.419] winDetectSupportedEngines - DirectDraw4 installed, allowing 
ShadowDDNL
[    50.466] winDetectSupportedEngines - Returning, supported engines 
0000001f
[    50.466] winSetEngine - Multi Window or Rootless => ShadowGDI
[    50.466] winScreenInit - Using Windows display depth of 32 bits per 
pixel
[    50.466] winAllocateFBShadowGDI - Creating DIB with width: 1920 
height: 1080 depth: 32
[    50.466] winFinishScreenInitFB - Masks: 00ff0000 0000ff00 000000ff
[    50.466] winInitVisualsShadowGDI - Masks 00ff0000 0000ff00 000000ff 
BPRGB 8 d 24 bpp 32
[    50.466] winInitMultiWindowWM - Calling pthread_mutex_lock ()
[    50.466] winMultiWindowXMsgProc - Calling pthread_mutex_lock ()
[    50.466] Screen 0 added at virtual desktop coordinate (0,0).
[    52.541] MIT-SHM extension disabled due to lack of kernel support
[    52.541] XFree86-Bigfont extension local-client optimization 
disabled due to lack of shared memory support in the kernel
[    53.102] (II) AIGLX: Loaded and initialized /usr/lib/dri/swrast_dri.so
[    53.102] (II) GLX: Initialized DRISWRAST GL provider for screen 0
[    53.165] [dix] Could not init font path element 
/usr/share/fonts/OTF/, removing from list!
[    53.165] [dix] Could not init font path element 
/usr/share/fonts/Type1/, removing from list!
[    53.523] (EE) XKB: Could not invoke xkbcomp
[    53.523] (EE) XKB: Couldn't compile keymap
[    53.523] (EE) XKB: Failed to load keymap. Loading default keymap 
instead.
[    53.633] (EE) XKB: Could not invoke xkbcomp
[    53.633] (EE) XKB: Couldn't compile keymap
[    53.633] XKB: Failed to compile keymap
[    53.633] Keyboard initialization failed. This could be a missing or 
incorrect setup of xkeyboard-config.
[    53.633]
Fatal server error:
[    53.633] Failed to activate core devices.


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