Can't Subscribe to Google Calendars after Migration to Mountain Lion

Question

I had my work Google canendars synciing fine with iCal on my old desktop running Lion.  After migrating to a new Mac Book with Mountain Lion, I cannot subscribe to my gCal's.  The error I get is "Server With Secure Communication Unavalable", which makes no sence.
I've tried:
Chosing to use the calendar when adding the gMail account to Mail.app
Enabling the Calendar under the "Mail, Contacts & Calendars" Preference pane
Adding the account using Calendar.app's Preferences.
The suggestions I've been able to find don't apply, because we are not using Google's two-step validation.
Did Mountain Lion break something with the Google-Apps flavor of gCal?  Is there a way to add via URL?  I tried that using Safari, but it did not work well (created a iCloud Calendar, wouldn't allow me to change the assigned color and repeatedly threw an error for the same over a year-old event despite clicking the "Ignore" button).
Ray

Answer 1

Found a work-around.  I don't know if this applies to all Google calendars, or just the Google-Apps ones:
Add the calendar as a generic CalDAV calendar.  Use your full (hosted) gMail address as the username and www.google.com as the server address.
Interrestingly, ML matched this up to the main Google account in the "Mail, Contacts & Calendars" Preference Pane
Ray