I uploaded a shorter version. Watch the numbers in "Time", "LST", and the "DST" box change when I click the sync to PC button. They change usually a second or two after the click.
I understand the first two error messages. ZWO decided to NOT use elevation in their driver although most programs do use the value.
Telescope.SiteElevation Property
The elevation above mean sea level (meters) of the site at which the telescope is located
Namespace: ASCOM.DriverAccess
Assembly: ASCOM.DriverAccess (in ASCOM.DriverAccess.dll) Version: 3351c4f3fa64146a7efd5b51ed4591e32a0a5484
I do have a problem though with you stating that the crash of Cartes du Ciel when I click 'set time', is not an ASCOM error. The dialog box is labeled "ASCOM telecope Interface", using the "ASCOM" local tab, using your ASCOM ASIMount.Telescope driver. I have asked the folks at the CdC forum for their input, but if you could clarify how the ASIMount.Telescope driver is not involved in some way, I'd appreciate it.
I cannot get to the logs at this time. I will try and upload them later. Thanks for your help.
Bobby