[Plugin: NextGEN Gallery] Extra Paragraph Tag Being Generated

I just installed the NextGen Gallery, along with the ImageFlow plugin. But, I’m having a strange issue. I’m assuming it’s something I messed up, but after taking a look around the files and online, I can’t seem to pinpoint the problem. There’s a </p> tag being generated/added somehow where it doesn’t need to be, and it’s causing the site not to validate. I was hoping someone more familiar with NG could help me out. Here’s an example of the output (I took out some of the content details but left the structure):

<div id="ngg-image-20" class="ngg-gallery-thumbnail-box" >
 <div class="ngg-gallery-thumbnail" >
  <a href="" title="" class="" ><br />
   <img title="" alt="" width="100" height="75" /><br />
  </a>
 </div>
</p></div>

See the (extra) end p tag? Any ideas?

Thanks!