From how you have described things, "computer B" might have an issue
with how the OS handles the retina display.

Is that an early iBook?

Thanks,

-- 
Raul

On Sat, May 1, 2021 at 10:25 AM Brian Schott <[email protected]> wrote:
>
> Computer B seems to be using only the
> bottom left quadrant or so of the form g.
> I say that because of the following experiment.
> The turtle's pen path ends at the center of
> the screen on Computer B, but ends at
> the upper right corner on Computer A.
> It seems as if on Computer B there is a
> form within a form, maybe?
> I wonder how to investigate this further.
>
>    createTurtle 0 0 0
>    rotR 0 0 0   NB. reorient the eye/camera
>    yw 45
>    fd 100
>    fd 100
>
> On Sat, May 1, 2021 at 9:21 AM Brian Schott <[email protected]> wrote:
>
> > Ric,
> >
> > Thanks for those tips.
> >
> > Yes, I was able to use the 2 queries
> > and the results were similar on both computers
> > as shown below. And when I move the form around
> > and resize the form, the numbers change appropriately.
> >
> > But that does not give me a hint as to why the
> > turtle positions would be so dramatically different.
> > (I could not effectively use the hinted-to glqwh command
> > having tried `glqwh '' `, for example.)
> >
> > On computer A:   wd'qform'
> > 500 23 600 600
> >
> >    wd'qchildxywh g'
> > 0 0 600 600
> >
> > On computer B:   wd'qform'
> > 424 23 600 595
> >
> >    wd'qchildxywh g'
> > 0 0 600 595
> > --
> >
> (B=)
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