03-07-2013 08:28 AM
I don't know if it's appropriate to promote something that I had to buy to solve this problem, but if I haven't broken any rules - here goes!
Google have stopped supporting sync since the new year. I also needed to update my native calendars for the same reason found that I no longer could. I came across CompanionLink (CompanionLink5 for Outlook); and it works.
When transferring / updating Google calendar using the product, just use the option to "wipe" at the Google end first. In that way, if Outlook is your main source for your diary/calendar it will propagate through properly. The developer gives you a fully working trial to see if its for you...... saved me going quietly nuts on how to solve my problem - if it helps those of you with similar tales of woe, then I'm happy to point it out.