here's how I do it for all of the button controls in a group

VB Code:
  1. For Each ctl As Control In StrategyBuildergrp.Controls
  2.             If TypeOf (ctl) Is Button Then
  3.                 CType(ctl, Button).BackColor = BUTTON_COLOR
  4.             End If
  5.         Next

of course if you are changing the color of a single button, then use
VB Code:
  1. button1.backcolor = system.drawing.color.<somecolor>
HTH
kevin