Index: src/graphics/GraphicsCacheItem.C
===================================================================
--- src/graphics/GraphicsCacheItem.C	(revision 13257)
+++ src/graphics/GraphicsCacheItem.C	(working copy)
@@ -295,7 +295,7 @@
 
 	cl_.disconnect();
 	cl_ = image_->finishedLoading.connect(
-		boost::bind(&Impl::imageLoaded, this, _1));
+		boost::bind(&Impl::imageLoaded, boost::ref(*this), _1));
 	image_->load(file_to_load_);
 }
 
@@ -440,7 +440,7 @@
 	// the graphics converter so that we can load the modified file
 	// on completion of the conversion process.
 	converter_.reset(new Converter(filename, to_file_base, from, to));
-	converter_->connect(boost::bind(&Impl::imageConverted, this, _1));
+	converter_->connect(boost::bind(&Impl::imageConverted, boost::ref(*this), _1));
 	converter_->startConversion();
 }
 
Index: src/graphics/GraphicsLoader.C
===================================================================
--- src/graphics/GraphicsLoader.C	(revision 13257)
+++ src/graphics/GraphicsLoader.C	(working copy)
@@ -240,7 +240,7 @@
 	if (continue_monitoring && !cached_item_->monitoring())
 		cached_item_->startMonitoring();
 
-	cached_item_->connect(boost::bind(&Impl::statusChanged, this));
+	cached_item_->connect(boost::bind(&Impl::statusChanged, boost::ref(*this)));
 }
 
 
Index: src/graphics/GraphicsLoader.h
===================================================================
--- src/graphics/GraphicsLoader.h	(revision 13257)
+++ src/graphics/GraphicsLoader.h	(working copy)
@@ -89,7 +89,7 @@
 	 *  changes.
 	 */
 	typedef boost::signal<void()> sig_type;
-	typedef sig_type::slot_type slot_type;
+	typedef boost::function<void()> slot_type;
 	///
 	boost::signals::connection connect(slot_type const &) const;
 
Index: src/support/FileMonitor.h
===================================================================
--- src/support/FileMonitor.h	(revision 13257)
+++ src/support/FileMonitor.h	(working copy)
@@ -53,7 +53,7 @@
 
 	/// Connect and you'll be informed when the file has changed.
 	typedef boost::signal<void()> FileChangedSig;
-	typedef FileChangedSig::slot_type slot_type;
+	typedef boost::function<void()> slot_type;
 	///
 	boost::signals::connection connect(slot_type const &) const;