Upgraded to Onenote 2016 but all data is old

[tallon]

Hi,

I've just upgraded from OneNote 2010 to OneNote 2016, but it seems to have picked up the wrong source data - everything is very old. I can still see the correct up-to-date data in the 2010 version, but presumably there's a 'source file' somewhere (like the .PST file in Outlook?) and it's just using an old one, maybe?

If so, where/how do I find the right one?

Or am I completely on the wrong track?

Thanks.