Index: wp-admin/css/colors-classic.css
===================================================================
--- wp-admin/css/colors-classic.css	(revision 24577)
+++ wp-admin/css/colors-classic.css	(working copy)
@@ -1485,7 +1485,8 @@
 	border: 1px solid #d1e5ee;
 }
 
-.diff-slider .ui-slider-tooltip {
+.revisions-tooltip,
+.revisions-tooltip-arrow:after {
 	border-color: #d1e5ee;
 	background-color: #fff;
 }
Index: wp-admin/css/colors-fresh.css
===================================================================
--- wp-admin/css/colors-fresh.css	(revision 24577)
+++ wp-admin/css/colors-fresh.css	(working copy)
@@ -1379,7 +1379,8 @@
 	border: 1px solid #dfdfdf;
 }
 
-.ui-slider-tooltip {
+.revisions-tooltip,
+.revisions-tooltip-arrow:after {
 	border-color: #d7d7d7;
 	background-color: #fff;
 }
Index: wp-admin/css/wp-admin.css
===================================================================
--- wp-admin/css/wp-admin.css	(revision 24577)
+++ wp-admin/css/wp-admin.css	(working copy)
@@ -3501,10 +3501,14 @@
 }
 
 .revisions-controls {
-	padding: 40px 0 20px;
-	margin-bottom: 10px;
+	padding-top: 40px;
+	height: 100px;
 }
 
+.comparing-two-revisions .revisions-controls {
+	height: 140px;
+}
+
 .revisions-meta {
 	margin-top: 15px;
 }
@@ -3575,13 +3579,6 @@
 	text-decoration: none;
 }
 
-.revisions .ui-slider-tooltip {
-	position: absolute;
-	bottom: 105px;
-	margin-left: -70px;
-	line-height: 28px;
-}
-
 #diff-title-to strong {
 	display: inline;
 }
@@ -3589,7 +3586,7 @@
 #diff-header {
 	-webkit-border-radius: 3px;
 	border-radius: 3px;
-	padding: 5px 200px 5px 5px;
+	padding: 5px;
 	clear: both;
 }
 
@@ -3628,71 +3625,46 @@
 	display: block;
 }
 
-.ui-tooltip-content img,
-.ui-slider-tooltip img {
-	float: left;
-	margin-right: 5px;
-	margin-top: 2px;
-	padding: 0;
-	vertical-align: middle;
-}
-
-
-/*  jQuery UI Tooltip 1.10.1 */
-
-.ui-tooltip,
-.ui-slider-tooltip {
-	padding: 4px;
+.revisions-tooltip {
 	position: absolute;
+	bottom: 105px;
+	margin-left: -70px;
+	line-height: 28px;
 	z-index: 9999;
-	max-width: 300px;
+	max-width: 350px;
 	min-width: 130px;
+	padding: 4px;
 }
 
-body .ui-tooltip,
-body .ui-slider-tooltip {
-	border-width: 1px;
+.comparing-two-revisions .revisions-tooltip {
+	bottom: 145px;
 }
 
-.ui-tooltip,
-.ui-slider-tooltip,
-.arrow:after {
-	border: 1px solid #d7d7d7;
+.revisions-tooltip img {
+	float: left;
+	margin: 2px 5px 0 0;
+	padding: 0;
+	vertical-align: middle;
 }
 
-.ui-tooltip,
-.ui-slider-tooltip {
-	padding: 4px 4px;
-}
-
-.arrow {
+.revisions-tooltip-arrow {
 	width: 70px;
-	height: 16px;
+	height: 15px;
 	overflow: hidden;
 	position: absolute;
 	left: 0;
-	margin-left: -35px;
-	bottom: 90px;
+	margin-left: 35px;
+	bottom: -15px;
 	z-index: 10000;
 }
 
-.arrow.top {
-	top: -16px;
-	bottom: auto;
-}
-
-.arrow.left {
-	left: 20%;
-}
-
-.arrow:after {
+.revisions-tooltip-arrow:after {
 	content: "";
 	position: absolute;
 	left: 20px;
 	top: -20px;
 	width: 25px;
 	height: 25px;
-	background-color: #FFF;
 	-webkit-transform: rotate(45deg);
 	-moz-transform: rotate(45deg);
 	-ms-transform: rotate(45deg);
@@ -3700,13 +3672,13 @@
 	tranform: rotate(45deg);
 }
 
-.arrow.top:after {
-	bottom: -20px;
-	top: auto;
+.revisions-tooltip,
+.revisions-tooltip-arrow:after {
+	border-width: 1px;
+	border-style: solid;
 }
 
  /* jQuery UI Slider */
-
 .wp-slider.ui-slider {
 	position: relative;
 	border-width: 1px;
@@ -3786,31 +3758,7 @@
 	right: 0;
 }
 
-.wp-slider.ui-slider-vertical {
-	width: .8em;
-	height: 100px;
-}
 
-.wp-slider.ui-slider-vertical .ui-slider-handle {
-	left: -.3em;
-	margin-left: 0;
-	margin-bottom: -.6em;
-}
-
-.wp-slider.ui-slider-vertical .ui-slider-range {
-	left: 0;
-	width: 100%;
-}
-
-.wp-slider.ui-slider-vertical .ui-slider-range-min {
-	bottom: 0;
-}
-
-.wp-slider.ui-slider-vertical .ui-slider-range-max {
-	top: 0;
-}
-
-
 /*------------------------------------------------------------------------------
   11.3 - Featured Images
 ------------------------------------------------------------------------------*/
Index: wp-admin/includes/revision.php
===================================================================
--- wp-admin/includes/revision.php	(revision 24577)
+++ wp-admin/includes/revision.php	(working copy)
@@ -27,6 +27,12 @@
 		$compare_to = $temp;
 	}
 
+	// Add default title if title field is empty
+	if ( $compare_from && empty( $compare_from->post_title ) )
+		$compare_from->post_title = __( '(no title)' );
+	if ( empty( $compare_to->post_title ) )
+		$compare_to->post_title = __( '(no title)' );
+
 	$return = array();
 
 	foreach ( _wp_post_revision_fields() as $field => $name ) {
Index: wp-admin/js/revisions.js
===================================================================
--- wp-admin/js/revisions.js	(revision 24577)
+++ wp-admin/js/revisions.js	(working copy)
@@ -357,19 +357,16 @@
 
 		initialize: function() {
 			this.$el.html( this.template() );
-			this.listenTo( this.model, 'change:compareTwoMode', this.updateCompareTwoMode );
 		},
 
 		updateCompareTwoMode: function() {
 			if ( this.model.get( 'compareTwoMode' ) ) {
-				$( '.compare-two-revisions' ).parent().css('border', '1px solid #f00;').prop( 'checked', true );
-				$( '.revisions-control-frame' ).addClass( 'comparing-two-revisions' );
+				$( '.compare-two-revisions' ).prop( 'checked', true );
 				// in RTL mode the 'left handle' is the second in the slider, 'right' is first
 				$( '.wp-slider a.ui-slider-handle' ).first().addClass( isRtl ? 'right-handle' : 'left-handle' );
 				$( '.wp-slider a.ui-slider-handle' ).last().addClass( isRtl ? 'left-handle' : 'right-handle' );
 			} else {
 				$( '.compare-two-revisions' ).prop( 'checked', false );
-				$( '.revisions-control-frame' ).removeClass( 'comparing-two-revisions' );
 				$( '.wp-slider a.ui-slider-handle' ).removeClass( 'left-handle' ).removeClass( 'right-handle' );
 			}
 
@@ -392,6 +389,11 @@
 			// Hide compare two mode toggle when fewer than three revisions.
 			if ( this.model.revisions.length < 3 )
 				$( '.revision-toggle-compare-mode' ).hide();
+
+			this.listenTo( this.model, 'change:compareTwoMode', this.updateCompareTwoMode );
+
+			// Update the mode in case route has set it
+			this.updateCompareTwoMode();
 		}
 
 	});
@@ -425,13 +427,12 @@
 			if ( null === this.model.get( 'revision' ) )
 				return;
 
+			// Insert revision data.
 			this.$el.html( this.template( this.model.get( 'revision' ).toJSON() ) );
 
-			var offset = $( '.revisions-buttons' ).offset().left,
-				calculatedX = this.model.get( 'position' ) - offset;
-
-			$( '.ui-slider-tooltip', this.$el ).css( 'left', calculatedX );
-			$( '.arrow', this.$el ).css( 'left', calculatedX );
+			// Set the position.
+			var offset = $( '.revisions-buttons' ).offset().left;
+			this.$el.css( 'left', this.model.get( 'position' ) - offset );
 		}
 	});
 
@@ -542,6 +543,9 @@
 			this.settings.attributes.value = this.model.revisions.indexOf(
 				this.model.revisions.findWhere( { id: Number( revisions.settings.selectedRevision ) } ) );
 
+			// And update the slider in case the route has set it.
+			this.updateSliderSettings();
+
 			this.slide( '', this.settings.attributes );
 
 			this.$el.slider( this.settings.toJSON() );
@@ -555,7 +559,6 @@
 
 			// Listen for changes in the diffId
 			this.listenTo( this.model, 'change:diffId', this.diffIdChanged );
-
 		},
 
 		mousemove: function( e ) {
@@ -589,27 +592,44 @@
 		},
 
 		updateSliderSettings: function() {
-			if ( isRtl ) {
-				this.$el.slider( { // Order reversed in RTL mode
-					value: this.model.revisions.length - this.model.revisions.indexOf( this.model.get( 'to' ) ) - 1
+			if ( this.model.get( 'compareTwoMode' ) ) {
+				var leftValue, rightValue;
+
+				// In single handle mode, the 1st stored revision is 'blank' and the 'from' model is not set
+				// In this case we move the to index over one
+				if ( 'undefined' == typeof this.model.get( 'from' ) ) {
+					if ( isRtl ) {
+						leftValue  = this.model.revisions.length -  this.model.revisions.indexOf( this.model.get( 'to' ) ) - 2;
+						rightValue = leftValue + 1;
+					} else {
+						leftValue  = this.model.revisions.indexOf( this.model.get( 'to' ) );
+						rightValue = leftValue + 1;
+					}
+				} else {
+					leftValue  = isRtl ?	this.model.revisions.length -  this.model.revisions.indexOf( this.model.get( 'to' ) ) - 1 :
+											this.model.revisions.indexOf( this.model.get( 'from' ) ),
+					rightValue = isRtl ?	this.model.revisions.length - this.model.revisions.indexOf( this.model.get( 'from' ) ) - 1 :
+											this.model.revisions.indexOf( this.model.get( 'to' ) );
+				}
+
+				// Set handles to current from / to models.
+				// Reverse order for RTL
+				this.$el.slider( {
+					values: [
+						leftValue,
+						rightValue
+					],
+					value: null,
+					range: true // Range mode ensures handles can't cross
 				} );
 			} else {
-				if ( this.model.get( 'compareTwoMode' ) ) {
-					this.$el.slider( { // Set handles to current from/to models
-						values: [
-							this.model.revisions.indexOf( this.model.get( 'from' ) ),
-							this.model.revisions.indexOf( this.model.get( 'to' ) )
-						],
-						value: null,
-						range: true // Range mode ensures handles can't cross
-					} );
-				} else {
-					this.$el.slider( { // Set handle to current to model
-						value: this.model.revisions.indexOf( this.model.get( 'to' ) ),
-						values: null, // Clear existing two handled values
-						range: false
-					} );
-				}
+				this.$el.slider( { // Set handle to current to model
+					// Reverse order for RTL.
+					value: isRtl ?  this.model.revisions.length - this.model.revisions.indexOf( this.model.get( 'to' ) ) - 1 :
+									this.model.revisions.indexOf( this.model.get( 'to' ) ),
+					values: null, // Clear existing two handled values
+					range: false
+				} );
 			}
 			if ( this.model.get( 'compareTwoMode' ) ){
 				$( '.revisions' ).addClass( 'comparing-two-revisions' );
@@ -675,9 +695,10 @@
 					return false;
 
 				attributes = {
-					to: this.model.revisions.at( isRtl ? this.model.revisions.length - ui.values[1] - 1 : ui.values[1] ), // Reverse directions for RTL.
-					from: this.model.revisions.at( isRtl ? this.model.revisions.length - ui.values[0] - 1 : ui.values[0] ) // Reverse directions for RTL.
+					to: this.model.revisions.at( isRtl ? this.model.revisions.length - ui.values[0] - 1 : ui.values[1] ), // Reverse directions for RTL.
+					from: this.model.revisions.at( isRtl ? this.model.revisions.length - ui.values[1] - 1 : ui.values[0] ) // Reverse directions for RTL.
 				};
+
 			} else {
 				// Compare single revision mode
 				var sliderPosition = this.getSliderPosition( ui );
Index: wp-admin/revision.php
===================================================================
--- wp-admin/revision.php	(revision 24577)
+++ wp-admin/revision.php	(working copy)
@@ -55,7 +55,7 @@
 		break;
 	}
 
-	$post_title = '<a href="' . get_edit_post_link() . '">' . get_the_title() . '</a>';
+	$post_title = '<a href="' . get_edit_post_link() . '">' . _draft_or_post_title() . '</a>';
 	$h2 = sprintf( __( 'Compare Revisions of &#8220;%1$s&#8221;' ), $post_title );
 	$title = __( 'Revisions' );
 
@@ -127,14 +127,14 @@
 </script>
 
 <script id="tmpl-revisions-tooltip" type="text/html">
-	<div class="ui-slider-tooltip ui-widget-content ui-corner-all ">
+	<div class="revisions-tooltip-content">
 	<# if ( 'undefined' !== typeof data && 'undefined' !== typeof data.author ) { #>
 			{{{ data.author.avatar }}} {{{ data.author.name }}},
 			{{{ data.timeAgo }}} <?php _e( 'ago' ); ?>
 			({{{ data.dateShort }}})
 	<# } #>
 	</div>
-	<div class="arrow"></div>
+	<div class="revisions-tooltip-arrow"></div>
 </script>
 
 <script id="tmpl-revisions-checkbox" type="text/html">
Index: wp-includes/script-loader.php
===================================================================
--- wp-includes/script-loader.php	(revision 24577)
+++ wp-includes/script-loader.php	(working copy)
@@ -276,7 +276,7 @@
 
 	$scripts->add( 'wp-backbone', "/wp-includes/js/wp-backbone$suffix.js", array('backbone', 'wp-util'), false, 1 );
 
-	$scripts->add( 'revisions', "/wp-admin/js/revisions$suffix.js", array( 'wp-backbone', 'jquery-ui-slider', 'jquery-ui-tooltip' ), false, 1 );
+	$scripts->add( 'revisions', "/wp-admin/js/revisions$suffix.js", array( 'wp-backbone', 'jquery-ui-slider' ), false, 1 );
 
 	$scripts->add( 'imgareaselect', "/wp-includes/js/imgareaselect/jquery.imgareaselect$suffix.js", array('jquery'), '0.9.8', 1 );