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Settings > apps > all > calendar > clear data > restart your phone > check again
Hi mummybrew,
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Are you able to boot the handset in to safe mode and advise if the calendar works from there?
http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008
Let us know how you get on.
have you disable any app? or rooted your phone and removed/uninstall apps/services?
What if you re-install the latest android update
Bridge (for Mac)
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