title: Nivo Slider Strange behavior: Blank slide after the last image
body: <p>I was testing Nivo and I am getting this strange behavior that appears a blank slide after the last image, like a blank image, for a while and than starts again (normal). It's not random always after the last slide. 
  I'm using Twitter Bootstrap and jQuery 1.7.1 and the code is:</p>
  
  <pre><code>                &lt;div class="slider-wrapper theme-default"&gt;&lt;div class="ribbon"&gt;&lt;/div&gt;
                      &lt;div id="nivoslider" class="nivoSlider" style="width:743px;height:295px;overflow: hidden"&gt;
  
                          &lt;a href="#"&gt;&lt;img src="images/nivo/banner740-optz.png" title="#teste1" alt="" /&gt;&lt;/a&gt;
                          &lt;a href="#"&gt;&lt;img src="images/nivo/nemo.jpg" title="#teste2" alt="" /&gt;&lt;/a&gt;
                          &lt;a href="#"&gt;&lt;img src="images/nivo/toystory.jpg" title="#teste3" alt="" /&gt;&lt;/a&gt;
                          &lt;a href="#"&gt;&lt;img src="images/nivo/walle.jpg" title="#teste4" alt="" /&gt;&lt;/a&gt;
                          &lt;a href="#"&gt;&lt;img src="images/nivo/up.jpg" title="#teste5" alt="" /&gt;&lt;/a&gt;
  
                          &lt;div id="teste1" class="nivo-html-caption"&gt;
                              &lt;h4&gt;Some Title&lt;/h4&gt;
                              &lt;p&gt;Some paragraph&lt;/p&gt;
                          &lt;/div&gt;
                          &lt;div id="teste2" class="nivo-html-caption"&gt;
                              &lt;h4&gt;Some Title&lt;/h4&gt;
                              &lt;p&gt;Some paragraph&lt;/p&gt;
                          &lt;/div&gt;
                          &lt;div id="teste3" class="nivo-html-caption"&gt;
                              &lt;h4&gt;Some Title&lt;/h4&gt;
                              &lt;p&gt;Some paragraph&lt;/p&gt;
                          &lt;/div&gt;
                          &lt;div id="teste4" class="nivo-html-caption"&gt;
                              &lt;h4&gt;Some Title&lt;/h4&gt;
                              &lt;p&gt;Some paragraph&lt;/p&gt;
                          &lt;/div&gt;
                          &lt;div id="teste5" class="nivo-html-caption"&gt;
                              &lt;h4&gt;Some Title&lt;/h4&gt;
                              &lt;p&gt;Some paragraph&lt;/p&gt;
                          &lt;/div&gt;
  
                      &lt;/div&gt;
  
                  &lt;/div&gt;
  </code></pre>