Hi folks,

So far, I've had one reply saying "the GSC-2.2 feature works just
fine" and two saying "no, it doesn't." More replies may help me figure
this one out.

To get it to work, you should get _both_ the Guide 7 update software
I mentioned originally (if you click on "Help... About Guide" and get
the message "You are running the 20 June 2001 version", you're all set),
plus the gsc22.zip file I added a day or two later:

http://www.projectpluto.com/gsc22.zip

If, despite these, you're still not getting GSC-2.2 data, check
some of the following:

(1) GSC22.EXE grabs the data and stores the raw bytes in a file called
TEMP.DAT. Do you have that file? It's a text file; does it contain
meaningful data?

(2) GSC22.EXE next takes the data from TEMP.DAT and reformats it,
appending it to GSC22.DAT. (It has to do this because the raw data from
the STScI server is in a somewhat odd format, as astronomical datasets
go.) Does GSC22.DAT look reasonable?

(3) Take a look at "Extras... Toggle User-Added Datasets". The dataset
"GSC-2.2 data (as ellipses)" should be turned on (asterisk next to it).
The dataset "GSC-2.2 data (as stars)" shouldn't be on by default.

(4) GSC22.EXE is a Windows console app, which unfortunately means it
can crash without anyone ever seeing an error message. To duck around
this, go to a DOS prompt, change to the Guide directory, and try
running GSC22. Do it that way, and you _will_ see an error message.
(If it works properly, you'll get a statement describing the command
line arguments it usually accepts.)

(5) A final warning: Don't click the '22' button unless you're zoomed
in to a field of a few arcminutes (smaller than that near the Milky Way,
larger far away from it). GSC-2.2 is a _very_ detailed dataset.

Somewhere in the above, we ought to find some sort of answer... please
let me know what you find!

Thanks! -- Bill