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From: "Eli Zaretskii" <eliz@elta.co.il>
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Subject: Re: Upgraded to 21.1 and backspace no longer works
Date: Thu, 06 Mar 2003 06:26:55 +0200
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> Date: Wed, 5 Mar 2003 13:16:25 -0500
> From: "J. E. Lewis" <louie@louie.cc>
> > 
> >     M-x normal-erase-is-backspace-mode RET
> > 
> > Did that help?
> 
> Yes that fixed it. But I wonder what changed, to stop it from working
> in 21 when it worked the way I expected it to in 20.

Emacs 21 now tries to detect those systems where there's both a
Backspace and Delete key, and assigns both to different functions.  In
your case, it seems it failed to do that correctly.