diff -r 692c7fb1ff2f administertooltip.css
--- administertooltip.css     Thu Aug 26 09:18:10 2010 +0200
+++ administertooltip.css     Tue Aug 31 12:14:00 2010 +0200
@@ -32,6 +32,12 @@
   padding: 4px;
   background: #EEE;
 }
+.administertooltip_placeholder {
+  background: #97DBFF;
+  -ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=40)";
+  filter: alpha(opacity=40);
+  opacity: .4;
+}

 /* Style the icons */
 .administertooltip_icons {
diff -r 692c7fb1ff2f js/administertooltip_dragndrop.js
--- js/administertooltip_dragndrop.js Thu Aug 26 09:18:10 2010 +0200
+++ js/administertooltip_dragndrop.js Tue Aug 31 12:14:00 2010 +0200
@@ -56,6 +56,8 @@
         helper: 'clone', // The administertooltip selection rectangle is buggy on 'original'.
         tolerance: 'pointer', // Div's get strange sizes on different regions, pointer is therefor better.
         connectWith: obj.regions,
+        placeholder: 'administertooltip_placeholder',
+        forcePlaceholderSize: true,

         // Remove the messages when you begin dragging again.
         start: function(event, ui) {