Custom button tracking problem

FROM : Steve Israelson
DATE : Mon Jan 14 21:18:46 2008

I have made a custom button and cell class and have a mouse tracking 
problem I can't solve.
The button is tall, about 45 pixels. The title is the normal size and 
centered.
When there is a click in the button, the button only responds when the 
mouse is clicked inside the title string.
I tried over-riding track mouse in the cell class, but it is not even 
called if the mouse is not over the title string.
Does anyone know of any other things I must override in the button or 
cell classes to make this work properly?