Hmm. I forgot that entry titles and comment titles have different heading levels... Let's see... Would you try this instead of what I gave you before?

.has-userpic.no-subject .entry-title,
.has-userpic.no-subject .comment-title {
min-height: 1.2em;
}

.has-userpic .comment-title {
margin: .25em 0;
padding: .25em 0;
}