Thanks Mark,

Well, I had the same position data in both AOS and SATPC32.

I don't know what was happening, but it seems to have magically resolved itself. Both programs now read the same.

Strange. But I think we can attribute it to RF getting into the computer. At any rate I'm glad I didn't go ahead and reinstall everything.

Oh well - you don't have to be good of you're lucky!

Roger VA7MG