I recently upgraded to Office 2010 BETA and I notice an annoy bug in OneNote 2010.
There is a feature in OneNote 2010 which will highlight unread content after notes are synced between two PCs. However, it can’t detect whether those content is read or not so the green highlighting will stay there forever.
The workaround is right-clicking on the notebook and choosing to Mark as Read. By doing this you tell OneNote I read it and please remove the green highlighting. This also makes unread bolding go away.
29th April – This is gone in final Office 2010 RTM build 14.0.4763.1000