I have given this a try in IE8 and do not seem to have the same problem. I'm including a screen shot of what I got so that you can compare it. Please post back with a screen shot of what you are experiencing so we can get a better idea of what may be going on.
![](/forums/attachments/20770/cache/var/www/vhosts/webassist.com/user_uploads/forums/attachments/20770/proportion/add%20row_w173_h100/add%20row_11170737.jpg)