As I was posting comments yesterday, I was surprised to discover that a lot of members aren't using a comment 'size control' code either because they don't know about it or by choice.
What happens when you don't use the 'size control' code you ask? If someone posts a large graphic in the comment section of your page .. you might discover that everything on the left side has been reduced in size and you will have to move a scroll bar located at the bottom to view the right side of your page.
To keep that from happening, try using one of the following codes (copy it and paste it in the CSS box of Design My Profile:
.comment-text { overflow: auto; position: relative; width: 500px;
}
.comment-text {width: 500px;max-height:400px;height:auto !important;height:400px;overflow:auto;}