Hi Bob and William,

The story is not quite over. Autoslew is working for slewing and tracking but the next layer of the onion is that it seems to be not sending Telescope.AtPark=TRUE to ACP/ASCOM. If I command Close on the mini control panel on ACP, the telescope Parks physically (I have sensors for this) but Autoslew does not send AtPark. I've used .vbs scripts to interrogate the telescope/Autoslew and the scope says it CanPark, CanTrack, etc but Telescope.AtPark remains FALSE. There are no script errors or other errors in the logs.

The only thing I have seen is on closing ACP after disconnecting the telescope is that I get a pop-up occasionally saying "Object variable or With block variable not set" .

I think I can hack the AtPark issue but this removes a layer of safety that makes me nervous.

Any and all suggestions gratefully received.