title: Nivo Slider Bullets "are not centered" after adding more Slides
body: <p>i'm using Nivo Slider in my Wordpress and vBulletin with a Iframe . but when i added more slides the navigation bullets turned to the right , and are not centered anymore.
  i just know about CSS an NO jquery. how can i solve this problem ?</p>
  
  <p>ScreenShot : <a href="http://up.vbiran.ir/images/e7r4xxdp09ms0bafb4f.jpg" rel="nofollow">http://up.vbiran.ir/images/e7r4xxdp09ms0bafb4f.jpg</a></p>