A family of Microsoft products that enable users to capture, organize, and reuse notes electronically.
Thanks so much Clark.
I did try a fair few things, including syncing manually and it didn't work.
However the simple suggestion of just making a new notebook worked....so I have just copied everything on to that. Not that this solves the original problem...but obviously it was something wrong with that individual notebook so it's probably just easier to make a new one. At least I can do my work now.
Thanks again.