[R] Rcmdr GUI goes into loop via alt+backspace under Windows OS

[Robert W. Baer, Ph.D.]

It just produces the "bell" sound on my 32-bit windows XP machine runing R 
2.9.1

Is this really a "standard" combination?  I know a  lot of programs that use 
ctrl-Z, but I've never come across this shortcut key combination for undo.


----- Original Message ----- 
From: "tradenet" <nodecorum at yahoo.com>
To: <r-help at r-project.org>
Sent: Tuesday, July 21, 2009 5:39 PM
Subject: [R] Rcmdr GUI goes into loop via alt+backspace under Windows OS


>
> I'm using Rcmdr version 1.4-10 with R version 2.9.0 under Vista x64.
>
> A standard editing convention under Windows is that alt+backspace is a
> keyboard shortcut for "undo".  I often find myself hitting the [alt] and
> [backspace] keys while editing scripts in Rcmdr. However, this causes the
> Rcmdr GUI to go into a crazy mode where the menu keeps flashing and the 
> GUI
> is unresponsive.  Sometimes after several minutes, the GUI menus stop
> sporadically flashing and the GUI becomes responsive again, but usually I
> have to kill R.
>
> Has anyone else seen this problem and might there be a fix for it?
>
> If it weren't for the fact that the particular key combination is a 
> standard
> in Windows I would ignore the problem, but I often get trapped by it 
> because
> the GUI handles this standard Windows key combination is such a bizzare 
> way.
>
> I'd appreciate any suggestions you might have.
>
> Regards,
>
> Andrew
> -- 
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