I have Social running on a couple of blogs and it seems that there is a CSS issue with how the comments are displayed (in Chrome). The comments "flow" outside the content area.
I edited the CSS (through Developers Tools in Chrome) and I think I made it work. I edited "#social .social-comment-body" and took out the "width: 100%;" part.
Examples here (until I implement a permanent fix):
It would be great if you could fix this in your next update :)