Javascript + CSS + IE

Hello All,

I have run into a JS / CSS layout issue in IE, and I can't for the life of
me figure out what's going on. Basically, I have one DIV that is expanding
beyond the bounds of the containing DIV, and I've literally spent hours
trying to find the problem. It appears to be somehow tied to the
scrollbars, but again, I'm not sure.

The container is resizable height-wise by grabbing the bottom of the
container, and the left and right columns within the container are
resizable by grabbing the divider between them. If you play around with
resizing it in various ways, the problem described above will come and go.

I have pulled a portion of the site and simplified it to show only the
problem, as I knew there would be no way to describe it...

http://www.griffisweb.com/resize

Of course, it works just fine in Firefox. I was hoping the problem would
disappear with IE7, but no such luck.

ANY help would be greatly appreciated, and I figure this is one of the
better places to ask.

Thanks, everyone!
Adam Griffis