diff --git a/VisualStudio/VisualStudio.dsw b/VisualStudio/VisualStudio.dsw
index 40c4baf88..99f64c344 100644
--- a/VisualStudio/VisualStudio.dsw
+++ b/VisualStudio/VisualStudio.dsw
@@ -564,7 +564,7 @@ Package=<4>
 
 ###############################################################################
 
-Project: "osgbillboard"=".\Demos\osgbilloard\osgbillboard.dsp" - Package Owner=<4>
+Project: "osgbillboard"=".\Demos\osgbillboard\osgbillboard.dsp" - Package Owner=<4>
 
 Package=<5>
 {{{
diff --git a/include/osg/Image b/include/osg/Image
index 022fcf6fb..69be76f87 100644
--- a/include/osg/Image
+++ b/include/osg/Image
@@ -86,7 +86,7 @@ class SG_EXPORT Image : public Object
 
         virtual ~Image();
 
-        Image& operator = (const Image& image) {}
+        Image& operator = (const Image&) { return *this; }
 
         std::string _fileName;
         int _s, _t, _r;
diff --git a/include/osg/ref_ptr b/include/osg/ref_ptr
index e64d87295..9192eb799 100644
--- a/include/osg/ref_ptr
+++ b/include/osg/ref_ptr
@@ -69,9 +69,14 @@ class ref_ptr
             return (_ptr<rp._ptr);
         }
 
-        inline const bool operator < (const T* ptr) const
+        inline const bool operator > (const ref_ptr& rp) const
         {
-            return (_ptr<ptr);
+            return (_ptr>rp._ptr);
+        }
+
+        inline const bool operator > (const T* ptr) const
+        {
+            return (_ptr>ptr);
         }
 
         inline T& operator*()  { return *_ptr; }