Wrapping two lines of text around a sidebar image

I’ve just added a block to my sidebar that displays the most recent comments, with an avatar. The problem is, my titles and author names are long, and sidebar small. So, the first line overflows and creates the mess you can see now. (The site is holidayfu.com; the block displaying recent comments is the third from the top.)

Ideally, I’d like two lines of text to appear next to every gravatar. I think this would fix the problem, but I’m open to other suggestions. I’m finding it difficult to play with because the gravatar a called by %g from the WP Comment Remix plugin – and because I’m a css idiot.