IE7 .png transparency bug on fadeIn and fadeOut

IE7 .png transparency bug on fadeIn and fadeOut


Hey all,
I've run across a bug and am wondering if others have found a
workaround or solution. I have an absolutely positioned div with a
background image that has .png alpha transparency. Debugging has
isolated the issue to jQuery's fadein effect. It also errs with
animate({opacity}). It works fine before calling the animation.
A screenshot demonstrating it in Safari (left) and IE (right) post-
animation.
http://i36.tinypic.com/28krlh4.jpg
Has anyone run across this bug before? Are there any fixes or
workarounds?
Many thanks!