Hi Bob,
back from France and the system is still pretty stable. No problems with APCC since Ray's suggestion. Interacting with roof and weather fine.
Only thing I have occasionally (twice) seen the NightCrawler ASCOM crash out of the blue. Just seems to happen when the system is waiting. If I disconnect the focuser it reconnect and all is well.
Somewhere in here I think either you or Ray mentioned some ?Windows logs that keep track of serial port usage?
I'd like to try to trace this down.
Cheers,
JY