Same issue on my 1520...Windows Phone is becoming increasingly challenging to stick with. Key banking apps leaving, Xbox Music debacle, the mythical denim update, and annoyances like the one you described that go unfixed.
Same issue here...un-checking Calendar Sync is having no effect either. Gmail just hangs at syncing and then later on prompts me that my "Google Account Info is Incorrect". Gmail works flawlessly with the same account on every other device I own.
Any other ideas?
What about the Dell Venue 11 Pro? $499 for the tablet (Baytrail and 64gb) and $129 for a truly awesome KB with extra battery. The Asus T100 KB build quality is major weakness...
Didn't do anything for me either...MSFT really doesn't give a rats ass about this platform. There should be a real fix for this by now versus senseless rhetoric.