Maskedbox backcolor problems

I'm trying to change the backcolor of a maskedbox when a button is pressed, but i'm having problems. what i have right now is a form, a maskedbox, and a button. I was keeping things simple to see if it worked. My mask is "##/##/####". When the button is pressed i have code that looks like this:

maskedboxName.backcolor = System.Drawing.Color.Aqua

however, nothing happens. i even tried changing the forecolor and still nothing. changing the colors to textboxes are not a problem. Any suggestions?

I'm using visual studio .net 2002 if that helps.

Which masked edit control are you using?

I'm not sure what you're asking for. I'm using vb.net and as far as i can see there's only one MaskedEdit control.

By default there isn't a masked edit in the toolbox and the only one I can find to use is the old COM one that comes with VB 6. Is that what your using?