re #9132 acceptable change, commenting improved

Code/Mantid/instrument/SURF_Definition.xml

@@ -70,11 +70,10 @@
   </component>  
 
   <type name="monitor2" is="monitor">
-    <!-- Shape specified as a minimum needs to cover the beam which
-         is 10mm high and 40mm wide. The 'top' shape is included to
-	 more easily recognise this monitor when visualised in MantidPlot.
-	 This monitor is suppose to look a bit like a German hand grenade.
-    -->    
+    <!-- Original shape included a Sphere attached to the cuboid
+	but that was cosmetic only as it is not in the beam, 
+	and was causing problems with opencascade on windows 8.  
+	Therefore it has been removed. -->    
     <percent-transparency val="95" />
     <cuboid id="base">
       <left-front-bottom-point x="0.02" y="-0.005" z="0.0"  />
@@ -83,16 +82,6 @@
       <right-front-bottom-point  x="-0.02" y="-0.005" z="0.0"  />   
     </cuboid>
 
-	<!-- remove cosmetic attachment that is causing problems
-    <cylinder id="top">
-      <centre-of-bottom-base x="0.0" y="0.0" z="0.01" />
-      <axis x="0.0" y="1.0" z="0.0" /> 
-      <radius val="0.02" />
-      <height val="0.04" />
-    </cylinder> 
-    
-    <algebra val="base : top" />
--->
   </type>  
 
   <component type="point-detector" idlist="point-detector">