title: Changing Line WIdth of Line charts and Max. scale for xlCategory
body: <p>I created a line chart in Excel 2010. Dim co(1 To 90) As ChartObject.
  How can I change its Line Width? 
  I tried using:</p>
  
  <pre><code>co(3).Chart.Series["Quality"].BorderWidth = 1 
  </code></pre>
  
  <p>Error occurred: Series is not a part of Chart objects And
  Is there any workaround for implementing Max. Scale for xlCategory? </p>