I’m throwing my hat in the ring to say I too have the same problem. For my blog, i changed the value in the wp-comments.php file for textarea name=”comment”, rows=”4″ to rows=”10 to increase the height of the text box. I then changed the value in wp-layout.css file for #commentform textarea from width= 75% to width: 600px so that the width of the text box will remain a fixed width. This has solved the problem on my blog.
