Ahhh.... cftree is eating my cfwindow! [Pic]

So, I've stumbled across a little 'bug'? In Firefox, the use of cfwindow on a page with cftree causes the cftree frame to eat the borders of the cfwindow. This does not seem to happen on IE. It kind of reminds me of using wmode="transparent" when drop down menus are used over flash movies.... any ideas? any fixes?

--> One amazing screenshot --> http://www.activmanuals.net/testbed/cftree_is_hungry.png

Thanks
C.