Index: src/fx.js
===================================================================
--- src/fx.js	(revision 3567)
+++ src/fx.js	(working copy)
@@ -293,8 +293,8 @@
 		this.options.orig[this.prop] = jQuery.attr( this.elem.style, this.prop );
 		this.options.show = true;
 
-		// Begin the animation
-		this.custom(0, this.cur());
+		// Begin the animation - start from 1 to avoid flashing in IE
+		this.custom(this.prop == "width" || this.prop == "height" ? 1 : 0, this.cur());
 
 		// Make sure that we start at a small width/height to avoid any
 		// flash of content
@@ -311,8 +311,8 @@
 		this.options.orig[this.prop] = jQuery.attr( this.elem.style, this.prop );
 		this.options.hide = true;
 
-		// Begin the animation
-		this.custom(this.cur(), 0);
+		// Begin the animation - end at 1 to avoid flashing in IE
+		this.custom(this.cur(), this.prop == "width" || this.prop == "height" ? 1 : 0);
 	},
 
 	// Each step of an animation