Newsgroups: comp.os.msdos.desqview
Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!sdd.hp.com!news.cs.indiana.edu!bobmon@iuvax.cs.indiana.edu
From: RAMontante <bobmon@iuvax.cs.indiana.edu>
Subject: Re: Problem with QPRO 2.0 and DV
Message-ID: <1991Jun7.085655.3559@news.cs.indiana.edu>
Organization: 'twixt Dali and Dada
References: <91155.212509AVIR@BGUVM.BITNET> <1991Jun5.034740.4147@monu0.cc.monash.edu.au>
Date: Fri, 7 Jun 91 08:55:56 -0500

You might try fiddling with the Keyboard Protection level.  I have mine
set to "F", and I've not seen any exception 13's for some time now.  Of
course, I'm not sure that's the reason... :-}