On this dynamic drive demo, adding border ruins it

[mgp22]

http://www.dynamicdrive.com/style/la...d-fixed-fixed/

Adding a 1px border to the right column wrecks the layout. Any ideas?
thanks!

[jscheuer1]

I see the right column says it's 190px. If you add a 1px border, it will become 192px width of layout space. So the first thing I would try is changing its style width to 188px so that the layout width remains 190.