android phone calendar not synching

The other day the calendar on my android phone stopped synching correctly to my google calendars.

It was partly way there. It new about the calendars but would not display any of the data.

I found this which did not describe my solution 100% but put me on the right track.

Go to Settings->Applications->Manage Applications->Calendar and select 'Clear data'.

This will give you a pop up box saying all the applications data willbe deleted permanently. Do not worry & select the the 'OK'.

Now go back to your calendar app and you will find all your calendars restored.