I have made a rather graphic interface for one of my models and in this
interface a use a lot of shapes, some of which I use as buttons. The problem
is that excel redraws all the shapes, even when for instants only one or two
shapes change color. This causes excel to run very slow, resulting in about
0,5 sec of redraw time, every time you push a button. I have tried:

Application.ScreenUpdating = False
Application.Calculation = xlCalculationManual
Application.EnableEvents = False

My question: how can I use a large amount of shapes without excel slowing
down?

I am using Excel 2003.