I am currently instantiating an NSMatrix w/ NSButtonCell subclasses through IB
I use the identity inspector to change the Tool Tip property
But the tooltip doesn't show on the button cell.
If I set a tooltip on the NSMatrix object, a tooltip still doesn't show
If I add an NSButton to the same view, and add a tooltip to that, it does show
Why won't my tooltips on NSMatrix or NSButtonCell show?