Lars,
First off, I greatly apologize for the non-response before. We pride ourselves on excellent support, and we obviously dropped the ball in your case. I'm not sure why I missed your post, but we'll do whatever we can, quickly, to get you going.
Now, as to your problem, it seems like there's an HTML issue on your page. When our buttons are being inserted into the page, along with the HTML issue, the browser is having trouble trying to determine the best way to overcome the glitch and render everything as best as it can.
By example, the HTML on your page around the "Label" text looks like:
<div class="tm-middle uk-grid" data-uk-grid-match data-uk-grid-margin>
<div class="tm-main uk-width-medium-3-4">
<main class="tm-content">
<h1>Label</h1>
<article class="uk-article" title="Deeper Shades Recordings Mission Statement
Written on 10 March 2008.
<div class="sourcecoast share twitter sc_twittershare"><a href="http://twitter.com/share" ....
The problem there is that the <article class=".. line is never properly closed.
It's possible that JFBConnect is causing that problem, but it would be something we've never seen before. My best guess is that your template has a bug in closing that line.
I hope that helps narrow things down for you, but if you feel it may be a JFBConnect problem, let us know and we'll gladly help however we can.
Thanks,
Alex