title: File Exists always return false
body: <pre><code>ImageURL = String.Format(@"../Uploads/docs/{0}/Logo.jpg", SellerID);
  if (!File.Exists(ImageURL))
  {
      ImageURL = String.Format(@"../Uploads/docs/defaultLogo.jpg", SellerID);
  }
  </code></pre>
  
  <p>Everytime I check if there is file, I get the default logo in image, is there something beyond permission to check.</p>
  
  <blockquote>
    <p>Note: this is class library referenced on website</p>
  </blockquote>