I've installed Office 2010 today, upgrading from 2007.
I updated Word doc files to the 2010 format (no more 'compatibility mode')
I updated all of my OneNote notebooks to 2010 format. I even tried creating brand new Word docs and OneNote notebooks.
I do have the Linked Notes button appearing in all the applications.
The docked display of OneNote works fine, and in fact shows the little chain icon to indicate it's ready to do linked notes.
The options in OneNote are set to allow for the creation of new linked notes.
I can press the button in Word to bring up an existing or new OneNote notebook page, and the display does seem to remember which one I used last.
But no matter what I do, linked notes are never created. I move from the Word doc, with the cursor located where I want a linked note. I type a note. And nothing happens. No little Word icon in the OneNote docked display to indicate it's linked. Checked the
COM add-ons and yes, it's showing the button working.
I've also checked in PowerPoint -- same problem. No linked notes are created.