title: Vba on Mac ScrollBar allows only double-clicking
body: <p>I have found the very strange situation on Mac Excel. For some strange reason the scrollbars react on double-click but not click and mouse-down.
  To test it, I created the blank form and added that code to the form initialize:
  <code>UserForm1.ScrollBars=MsForms.fmScrollBarsBoth</code>
  <code>UserForm1.ScrollWidth=900</code>
  <code>UserForm1.ScrollHeight=900</code></p>
  
  <p>Then run it and found that scrollbars reacting only double-click&amp;move.</p>
  
  <p>Who can help me with it?</p>