I am using Perl and Tcl/Tk to build a GUI and I ahve run into a question. When I have a checkbutton and I want that checkbutton, when checked in the GUI, to change the color of a text box from gray to white how do I do this particular action? I have tried, poorly, to use bind on the action of <Button-1> and this doesn't get me there. Any suggetions would be great.