Leopard Finder Sidebar

What a snappy title ! Piqued your interest didnt it.

On the finder sidebar you can drag project folders so that you can work on them quickly.
In the previous version of OS X they were a decent size, with Leopard they are tiny.

Does anyone know how to increase the icon size to make them more visible ?
I normally use bespoke images and icons but at that tiny size its pointless.

I have looked on the Apple site but have found nothing. I find it amazing one of the cool customisable elements of the OS has disappeared.