Hmm... My adding of body{overflow:hidden;} to the stylesheet of various dhtml animations of late is causing Phoenix (and probably any Gecko-based browser) to display a blank page... Removing the overflow-property makes them work again.

Could it be this trick of hiding the scrollbars has the nasty effect of altering the width/height of the body- or html-object, thereby messing up my dhtml item placement routines?

Update:
Aha, adding height:2000px; (or another pixelvalue that's sure to be higher than the window height) to the body{...} style seems to fix things. Still, weird; I don't remember having to do this in earlier Mozilla versions.