NSScrollView -- Not showing blue button scroll bar when < 4 rows?

Cocoa isn't rendering the blue scroll button unless my scroll view is 4 rows long.

_{(source: gordonjl.com)}

Does anyone know how to sho开发者_运维技巧w the scroll bar button when the scroll view is only two rows?

Thanks!

I don't think it's the number of rows, but that there just isn't enough room for the "blue button" and the scroll arrows. You need to increase the height of your table. It would be hard to use at that size anyway.