>I have a bunch of PNG images that I've attached to command buttons and forms over the last couple of weeks and they all looked fine. Now, for no apparent reason that I can see, the transparent areas of the PNG images are no longer transparent - they show white instead. Could someone please tell me what could possibly change within VFP to cause this arbitrary change?

IIRC, you have to preload transparent images into Image control in order to prove transparency for command buttons.