title: Excel chart (scatter plot) - X axis line behaves strangely
body: <p>I've noticed this issue a couple of times over the past few years, even now that I've moved from Excel 2013 to Excel 2016 and have a different computer.</p>
  
  <p>I produce a scatter plot, and set the axis line colors to black. Everything thing works as expected. Then I make a change to the underlying data, and the X axis line appears in the wrong place. As shown in the image below, the X axis line appears to be equal to around 4%, rather than 0% as you would expect. (To emphasize, the black lines are not data that is being plotted, but the result of formatting the axis lines to black).</p>
  
  <p><a href="https://i.stack.imgur.com/tpvXW.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/tpvXW.png" alt="enter image description here"></a></p>
  
  <p>If I close and re-open Excel file, or display it on a different screen, the issue resolves! The image below is exactly the same chart (and data) as shown above, but after I moved the open workbook from my primary monitor to my secondary monitor. Now the X axis line is where you would expect it to be!</p>
  
  <p><a href="https://i.stack.imgur.com/34jVk.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/34jVk.png" alt="enter image description here"></a></p>
  
  <p>Has anyone experienced this issue before, and any idea what causes it? I find it strange that it occurs on both new and older versions of Excel, different versions of Windows, and on different machines.</p>
  
  <p>Thank you very much for your time, </p>
  
  <p>Steve</p>