XWin.exe causes Windows apps. to freeze

[Jim Reisert AD1C <jjreisert@alum.mit.edu>]

I have a persistent problem at work after XWin has been running for a
while (sometimes hours, sometimes days).  Windows programs will
spontaneously freeze

I am running Windows XP SP3 on a Dell Latitude D810 laptop (Intel
T7200 @ 2.0 GHz, 2 GB RAM).  I typically run MS Outlook 2007, some
form of Firefox (either release or beta), and Citrix (remote-access
software), all at the same time, though I have run the various flavors
of VNC (Real, Tight, Tiger) in the past.  Graphics is an NVIDIA Quadro
NVS 110M with two monitors connected (one digital, one analog), using
the 197.68 driver.

What happens is that windows will spontaneously freeze.  For example,
I'm composing a message in Outlook, and all of a sudden, my keyboard
stops responding, then I'll get the Windows hourglass in that window.
Or I'll be surfing in Firefox and window changes just stop, again
hourglass.  Once this happens, killing XWin.exe from the task manager
immediately releases the hang condition(s), though the hang may
release itself if I wait several minutes (yeah, right).  At this
point, I can re-start XWin, but later on, it will happen again.

I'm starting XWin.exe from the install shortcut:

  C:\cygwin\bin\run.exe /usr/bin/bash.exe -l -c /usr/bin/startxwin.exe

I'm running the latest of Cygwin everything, the problem has been
across several (many) releases of the Xorg server.  I think it's using
the default options for multi-monitor, cut/paste, etc.  I can usually
copy/paste between XWin and MS Windows (and usually Citrix) without
any problems.  I keep thinking that the problem is something in the
XWin code that interfaces to Windows' copy/paste engine (OLE?).

Is there any way to debug this problem?  It would be great to get it resolved.

Thanks - Jim

-- 
Jim Reisert AD1C, <jjreisert@alum.mit.edu>, http://www.ad1c.us

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