FYI
I was going to delete this post but thought it would be better to let others know of the solution.
The "Right" and ""Left" text inside the spans was actually coming from the jquery.orbit-1.2.3.min.js file.
I simply replaced this:
<div class="slider-nav"><span class="right">Right</span><span class="left">Left</span></div>
with this:
<div class="slider-nav"><span class="right"></span><span class="left"></span></div>