Index: /CKEditor/trunk/_source/plugins/listblock/plugin.js
===================================================================
--- /CKEditor/trunk/_source/plugins/listblock/plugin.js	(revision 7051)
+++ /CKEditor/trunk/_source/plugins/listblock/plugin.js	(revision 7052)
@@ -37,5 +37,6 @@
 					keys[ 38 ]	= 'prev';					// ARROW-UP
 					keys[ CKEDITOR.SHIFT + 9 ]	= 'prev';	// SHIFT + TAB
-					keys[ 32 ]	= 'click';					// SPACE
+					keys[ 32 ]	= CKEDITOR.env.ie ? 'mouseup' : 'click';					// SPACE
+					CKEDITOR.env.ie && ( keys[ 13 ] = 'mouseup' );		// Manage ENTER, since onclick is blocked in IE (#8041).
 
 					this._.pendingHtml = [];
Index: /CKEditor/trunk/_source/plugins/menu/plugin.js
===================================================================
--- /CKEditor/trunk/_source/plugins/menu/plugin.js	(revision 7051)
+++ /CKEditor/trunk/_source/plugins/menu/plugin.js	(revision 7052)
@@ -300,6 +300,7 @@
 					keys[ 38 ]	= 'prev';					// ARROW-UP
 					keys[ CKEDITOR.SHIFT + 9 ]	= 'prev';	// SHIFT + TAB
-					keys[ 32 ]	= 'click';					// SPACE
-					keys[ ( editor.lang.dir == 'rtl' ? 37 : 39 ) ]	= 'click';  // ARROW-RIGHT/ARROW-LEFT(rtl)
+					keys[ ( editor.lang.dir == 'rtl' ? 37 : 39 ) ]= CKEDITOR.env.ie ? 'mouseup' : 'click';  // ARROW-RIGHT/ARROW-LEFT(rtl)
+					keys[ 32 ]	= CKEDITOR.env.ie ? 'mouseup' : 'click';					// SPACE
+					CKEDITOR.env.ie && ( keys[ 13 ] = 'mouseup' );		// Manage ENTER, since onclick is blocked in IE (#8041).
 
 					element = this._.element = block.element;
Index: /CKEditor/trunk/_source/plugins/panel/plugin.js
===================================================================
--- /CKEditor/trunk/_source/plugins/panel/plugin.js	(revision 7051)
+++ /CKEditor/trunk/_source/plugins/panel/plugin.js	(revision 7052)
@@ -381,9 +381,10 @@
 
 				case 'click' :
+				case 'mouseup' :
 					index = this._.focusIndex;
 					link = index >= 0 && this.element.getElementsByTag( 'a' ).getItem( index );
 
 					if ( link )
-						link.$.click ? link.$.click() : link.$.onclick();
+						link.$[ keyAction ] ? link.$[ keyAction ]() : link.$[ 'on' + keyAction ]();
 
 					return false;