Repeating background image on y-axis of column breaks layout in IE6?

I’m using the Matthew James Taylor layout and everything works fine until I try using a background image for one of the columns. Then it breaks in IE6.

It still looks fine in other browsers as far as I can tell, but this is the only thing (currently ;)) keeping me from having my layout also functional in IE6.

Can someone please tell me of a way around this? :frowning: