Bill,

Set the field to 180d and switch back and forth from zenith to
nadir. This shows a considerable diffference beteen the solid
"horizon color" circle size and the dotted "field circle"
size. Moving around the image shows all kinds of effects. Hope this
saves some head-scratching time...?

Larry

At 05:02 AM 10/12/2010, you wrote:

>
>
>Hello Arild,
>
>have you checked your file HORIZON.DAT? Eventually try with the
>original horizon
>file, after making a safety copy of your own file.
>
>Clear skies
>Bernd
>
> > has anybody else experienced the following oddity using the 15 sep
> > 2010 version of Guide?
> >
> > When I look at the sky at low levels (1, 2 etc) showing a lot of sky
> > at a time, instead of a black sky, I get the ground colour all over.
> > If I click around to center the map at different places, the black
> > background comes and goes, so to speak. When the pole region is
> > centered, for instance, the sky is black, but a slight offset may
> > return the ground colour. This is rather annoying, and nothing I've
> > ever noticed in earlier versions of the program.
> >
> > I'm running Guide under Win XP, as I've done for years.
>
>Bernd Brinkmann
>
>Sternwarte Herne, MPC code A18
>Herne, Germany

Laren Dart
http://ldart.got.net