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I started to try out TeXmacs in my Cygwin installation in Windows XP Home 
Edition.  I have been following the instructions at 
http://www.fmi.uni-passau.de/~seidl/texmacs/tmtour.html#2 and, since I have 
failed following them, also tried some variations on those instructions.  I 
think I had a good installation of TeXmacs with no missing dependencies; in 
running the Cygwin setup while connected to the Internet I clicked "View" 
until I saw the word "Partial" beside "View" and following that "Nothing to 
install/update."  The TeXmacs that I am using when installing it was 
associated with the numbers 1.0.4-4; so I suppose that is the version I am 
using, the current version provided within Cygwin on November 21 and/or 22, 
2005.  I double clicked on a Cygwin icon to open a Cygwin shell.  In that 
shell I typed:

export DISPLAY=127.0.0.1:0.0

XWin -multiwindow -clipboard & xterm &

The dollar sign did not return in the Cygwin shell.  Should I have waited 
longer for it?  I don't think this was the problem, having waited for quite 
awhile for a possible dollar sign.

Among the many lines which followed in the Cygwin shell some possible problem 
lines or lines related to later possible problem lines were:

_XSERVTransmkdir: owner of /tmp/.X11-unix should be set to root

(II) XF86Config is not supported

(==) Fontpath set to 
"/usr/X11R6/lib/X11/fonts/misc,/usr/X11R6/lib/X11/fonts/TTF,/usr/X11R6/lib/X11/fonts/Type1,/usr/X11R6/lib/X11/fonts/CD,/usr/X11R6/lib/X11/fonts/75dpi,/usr/X11R6/lib/X11/fonts/100dpi"

MIT-SHM extension disabled due to lack of kernel support

XFree86-Bigfont extension local-client optimization disabled due to lack of 
shared memory support in the kernel

Could not init font path element /usr/X11R6/lib/X11/fonts/TTF, removing from 
list!
Could not init font path element /usr/X11R6/lib/X11/fonts/Type1, removing 
from list!
Could not init font path element /usr/X11R6/lib/X11/fonts/CID, removing from 
list!
Could not init font path element /usr/X11R6/lib/X11/fonts/100dpi, removing 
from list!

WinPointerWarpCursor - Discarding first warp: 512 384  

I noticed a white rectangle or window with a dollar sign and some other text 
on a line in it, which I think was an Xterm window, and "X~" appearing on the 
Windows taskbar.  Eventually in the Cygwin window I noticed two of the 
following three lines which looked like more signs of problems:

winClipboardProc - XOpenDisplay () returned and successfully opened the 
display.

winProcSetSelectionOwner - Clipboard not yet started, aborting.  
winProcSetSelectionOwner - Clipboard not yet started, aborting.  

At this point I had a flashing cursor at the start of an otherwise blank line 
in the Cygwin shell and no dollar sign in it.

In Cygwin I typed:

texmacs &

and received the messages:

"TeXmacs] with linked TrueType support

pk file=/usr/share/TeXmacs/fonts/pk/ecbx10.600pk

Fatal error: more bits than required while unpacking in 'unpack'
See file : load-pk.cpp  "

So far I could not find the file load-pk.cpp on my computer; my computer was 
set up to search for hidden files and folders; so I just guess that the file 
load-pk.cpp is a file that had already been compiled and linked before a 
Cygwin file which was made from files including load-pk.cpp was distributed 
to me in executable form.  Windows notified me that it was closing TeXmacs 
due to a Data-Execution-Prevention error.  The intention of this sort of 
thing is apparently to protect a computer from possible harm.  Usually an 
additional window behind the Xterm window appeared with "no name" typed in 
the upper-left-hand corner of it; it disappeared after a rapid series of 
clicking sounds from my computer. 

I added the Cygwin X11 package called "xwinwm: External window manager for 
new multi-window mode;" but there was no improvement. I thought of removing 
XFree-lib-compat from my installed Cygwin packages, but did not, once I 
received the message in the Cygwin setup that this package is required by 
TeXmacs.  I added the Cygwin "Publishing" packages tetex-x11 and tetex-tiny; 
but still there was no improvement.  In the Cygwin X11 category I added 
WindowMaker and quit a large download of another package "xorg-x11-f100: 
Cygwin/X 100dpi fonts" before it was completed.  Running the Cygwin setup 
again and clicking the "View" button until I saw the word "Partial" beside 
it, below all of that I saw there was nothing to update or install.  There 
was only a minor improvement in the two following lines no longer being 
displayed in Cygwin:

Could not init font path element /usr/X11R6/lib/X11/fonts/TTF, removing from 
list!
Could not init font path element /usr/X11R6/lib/X11/fonts/Type1, removing 
from list!

Otherwise the problems were the same.  What should I do or what Cygwin 
software package might I be missing?  I gather from what I read from Mr. 
Andreas Seidl on the Internet at 
http://www.fmi.uni-passau.de/~seidl/texmacs/tmtour.html#2 that the commercial 
program XWin-32 produced by http://www.starnet.com/ at least sometime in the 
year 2004 may have been more stable than XWin.  But given a choice between 
the two programs, I would prefer to use the free XWin provided by Cygwin 
instead, if it can be made to work well.  Are people able to use XWin with 
TeXmacs without the problems above which I faced?  If so, how?  Please write 
your advice simply, directly, and as specifically as possible.  Thanks in 
advance for your help.

Pat