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From: fr07+@andrew.cmu.edu (Frank Ritter)
Newsgroups: comp.windows.x
Subject: Re: CLX/Common Windows with Tektronix XP series X terminals, Allegro CL
Message-ID: <AbfZ2fe00h7U42XetY@andrew.cmu.edu>
Date: 5 Feb 91 06:28:59 GMT
Organization: Psychology, Carnegie Mellon, Pittsburgh, PA
Lines: 14

We (i.e. Garnet developers and me, a Garnet user) have seen this with
allegro on a pmax.  Franz thought it was because we were running an
outdated version of twm.  We traded mail, and things slid into
oblivion as it was hard to date our twm, and our patch worked.  It
occurs when allegro is running and writing to a pmax display, which I
assume you have somewhere in your loop.  This may not be the case, but
the fix may still work: where you would call query tree, just use the
default root window as the single member of a list.  In garnet it's
called *default-x-root*.  This is not what you always will want, but
my code works with it, and I'm happy.

Frank Ritter@cs.cmu.edu       best mail drop
      ritter@psy.cmu.edu      my real affiliation
        fr07@andrew.cmu.edu   where the above two point to