Expanding Content Box not expanding correctly

[bubut]

Hello...I have an expanding content box with rounded corners, and for some reason I cannot get it to size right. When I have middle content and resize, it is not resizing right. Any help greatly appreciated. Btw, my layout is entirely css.

http://koget.madfrags.com/temp

http://koget.madfrags.com/temp/kog.css

I am using instructions from here:

http://www.alistapart.com/articles/customcorners2/

 

[bubut]

btw...it works perfectly in firefox....wth?