diff --git a/intern/ghost/intern/GHOST_SystemCarbon.cpp b/intern/ghost/intern/GHOST_SystemCarbon.cpp
index 067c8deee32..e6ab6528c70 100644
--- a/intern/ghost/intern/GHOST_SystemCarbon.cpp
+++ b/intern/ghost/intern/GHOST_SystemCarbon.cpp
@@ -34,7 +34,6 @@
  * @date	May 7, 2001
  */
 
-
 #include <Carbon/Carbon.h>
 #include <ApplicationServices/ApplicationServices.h>
 #include "GHOST_SystemCarbon.h"
@@ -430,6 +429,29 @@ GHOST_IWindow* GHOST_SystemCarbon::createWindow(
     return window;
 }
 
+GHOST_TSuccess GHOST_SystemCarbon::beginFullScreen(const GHOST_DisplaySetting& setting, GHOST_IWindow** window, const bool stereoVisual)
+{	
+	GHOST_TSuccess success = GHOST_kFailure;
+
+	// need yo make this Carbon all on 10.5 for fullscreen to work correctly
+	CGCaptureAllDisplays();
+	
+	success = GHOST_System::beginFullScreen( setting, window, stereoVisual);
+	
+	if( success != GHOST_kSuccess ) {
+			// fullscreen failed for other reasons, release
+			CGReleaseAllDisplays();	
+	}
+
+	return success;
+}
+
+GHOST_TSuccess GHOST_SystemCarbon::endFullScreen(void)
+{	
+	CGReleaseAllDisplays();
+	return GHOST_System::endFullScreen();
+}
+
 /* this is an old style low level event queue.
   As we want to handle our own timers, this is ok.
   the full screen hack should be removed */
diff --git a/intern/ghost/intern/GHOST_SystemCarbon.h b/intern/ghost/intern/GHOST_SystemCarbon.h
index 2a1d6325784..71ac5719370 100644
--- a/intern/ghost/intern/GHOST_SystemCarbon.h
+++ b/intern/ghost/intern/GHOST_SystemCarbon.h
@@ -118,6 +118,14 @@ public:
 		const GHOST_TEmbedderWindowID parentWindow = 0 
 	);
 	
+	virtual GHOST_TSuccess beginFullScreen(
+		const GHOST_DisplaySetting& setting, 
+		GHOST_IWindow** window,
+		const bool stereoVisual
+	);
+	
+	virtual GHOST_TSuccess endFullScreen( void );
+	
 	/***************************************************************************************
 	 ** Event management functionality
 	 ***************************************************************************************/