title: dlookup or dsum not working with date as field name
body: <p>Please help. I have written an access program, and I have used dates as field names, or column heading in the table.
  Now when I try to use DSUM or DLOOKUP, it does not behave correctly at all.</p>
  
  <p>If I change the table name to random text, it works.
  Please help me with this....</p>
  
  <pre><code>DLookUp("08/15/2015","qp_data2","Discipline = 'CSA'")
  </code></pre>
  
  <p>does not work, but</p>
  
  <pre><code>DLookUp("test","qp_data2","Discipline = 'CSA'")
  </code></pre>
  
  <p>does</p>