Texture Stretching on Symbol when resizing

[kwhitt]

I created my own screened porch panel symbol that has a 1" perimeter frame.  I used a technique I saw in a video by Steve Nestor for a screen material using CA's glass block texture with some added transparency.  I copied and redefined a the material with 1" x 1" sizing.  The width and height stretch planes are centered and the frame resizes perfectly.  When I resize the symbol in either plan or elevation view, the screen material stretches (before & after stretch images attached).  It works beautifully on the screen door placed by CA, but not on my panels for some reason.  Can anyone tell me what I'm missing here?  Thanks.

[kwhitt]

Figured it out.  I just saw the check box for global symbol mapping!