title: Excel Middle mouse button click not scrolling
body: <p>I have a workbook that will not let me glide around by <em>clicking</em> and holding the middle mouse button. </p>
  
  <p>I've seen a lot of answers and help around basic scrolling with the mouse, but that's working fine in this case. It's when I hold down the button, nothing happens. It works on other spreadsheets I have open at the same time so the problem must be specifically with that workbook. </p>
  
  <p>I seem to remember having the same trouble long ago with a single sheet in a book.</p>
  
  <p>Any ideas? The workbook does have a lot of VBA, but I've been unable to detect any part which would affect this. Could there be something buried in that?</p>