Index: lams_central/src/flash/org/lamsfoundation/lams/authoring/cv/Canvas.as
===================================================================
diff -u -r73d4c8a2ecc67e50a81aac9aabf30752a47fb14b -rcc12433ab3ea1323cee193aead5ab2c26fc0d57f
--- lams_central/src/flash/org/lamsfoundation/lams/authoring/cv/Canvas.as	(.../Canvas.as)	(revision 73d4c8a2ecc67e50a81aac9aabf30752a47fb14b)
+++ lams_central/src/flash/org/lamsfoundation/lams/authoring/cv/Canvas.as	(.../Canvas.as)	(revision cc12433ab3ea1323cee193aead5ab2c26fc0d57f)
@@ -374,6 +374,7 @@
 		
 		if(clearCanvas(true)){
 			_ddm.setDesign(designData);
+			checkValidDesign();
 			canvasModel.setDirty();
 		}else{
 			Debugger.log('Set design failed as old design could not be cleared',Debugger.CRITICAL,"setDesign",'Canvas');		
@@ -396,6 +397,7 @@
 			//as its a new instance of the ddm,need to add the listener again
 			_ddm.addEventListener('ddmUpdate',Proxy.create(this,onDDMUpdated));
 			_ddm.addEventListener('ddmBeforeUpdate',Proxy.create(this,onDDMBeforeUpdate));
+			checkValidDesign();
 			canvasModel.setDirty();
 			return true;
 		}else{