title: Lightbox not working or adding rel=lightbox to image links in WordPress
body: <p>Please forgive my ignorance.  I'm running WordPress 3.5 and just installed Lightbox Plus.  I've checked and double checked setting and it should be automatically adding the <code>rel=&quot;lightbox[uniqueID|filename]&quot;</code> attribute to image links, but it's not.</p>
  <p>I've checked my header.php and the hook <code>&quot;&lt;?php wp_head(); ?&gt;&quot;</code> is there.</p>
  <p>Here's the link added form the gallery.</p>
  <pre><code>&lt;a href=&quot;http://dreamlandhomes.ca/wp-content/uploads/5703-Elizabeth-A-main.png&quot;&gt;&lt;img class=&quot;aligncenter size-thumbnail wp-image-1556&quot; alt=&quot;5703-Elizabeth-A-main&quot; src=&quot;http://dreamlandhomes.ca/wp-content/uploads/5703-Elizabeth-A-main-150x150.png&quot; width=&quot;150&quot; height=&quot;150&quot; /&gt;&lt;/a&gt;
  </code></pre>
  <p>I've tried manually installing the attribute, but it doesn't work either.  just opens the image in a new tab.</p>
  <p>Example 2 (manually imputed rel)</p>
  <pre><code>&lt;a href=&quot;http://webaddresshere/wp-content/uploads/5703-Elizabeth-A-main.png&quot; rel=&quot;lightbox[test box]&quot;&gt;&lt;img class=&quot;aligncenter size-thumbnail wp-image-1556&quot; alt=&quot;5703-Elizabeth-A-main&quot; src=&quot;http://webaddresshere/wp-content/uploads/5703-Elizabeth-A-main-150x150.png&quot; width=&quot;150&quot; height=&quot;150&quot; /&gt;&lt;/a&gt;
  </code></pre>