We recently came across a strange situation where we could not add sections to an existing OneNote notebook hosted in SharePoint 2013. Using the Web App we noticed that the New Section option under Insert was grayed out.  Also we noticed we could no longer sync the notebook from a ...

We have been playing with Excel and Visio and everything was working fine when until a few users started to get errors when trying to add a new Excel or Visio web part to a page. Excel Couldn’t Open the Workbook.  The workbook cannot be opened. Visio The document can’t ...