Comments Box Bug (?) with IE6

A user on my weblog (running the Mingus 1.2 release) noted that the comment box in which he was typing a comment scrolled under the column of data on the right side of my page. This was visible in IE6 under Windows XP with SP2. I verified that it does indeed occur with that combination, though not with Mozilla.
If you click on View – Text Size and select any size, the box resizes itself so it ends to the left of the right-hand column. But as soon as you start typing in it, it resizes again to be under the column. When you type text up to it, you can’t see what you’re typing for that portion of the column.
You can see this on my weblog at:
http://www.countrykeepers.com/wp/index.php?p=1747
Just scroll down, click in the Comment On box, and type a single character.
I couldn’t find this after a quick search in the forums, though I easily could have missed someone else’s post for not having good search terms.