Then I wanted to change the right column width. Eww — it was using background images of a fixed size to color the left and right columns!
Pulled out those background images, and replaced them with color strings ala #666 and #ccc.
Then, the columns on the left and right didn’t go all the way down, and were never balanced with each other nor the center column.
The really good news is that it locks up IE. Yay! .