Index: lams_tool_mindmap/src/flash/AS/Branch.as
===================================================================
diff -u -re28d61401c1f05f1b3db8068f7ad76f161e90f09 -r643162984254c265d82c6c6d5f2ff34c378e1ce4
--- lams_tool_mindmap/src/flash/AS/Branch.as	(.../Branch.as)	(revision e28d61401c1f05f1b3db8068f7ad76f161e90f09)
+++ lams_tool_mindmap/src/flash/AS/Branch.as	(.../Branch.as)	(revision 643162984254c265d82c6c6d5f2ff34c378e1ce4)
@@ -36,7 +36,7 @@
 			this.addChild(this.sons);
 			this.applyCosmetics();
 			this.expandButton = new ExpandSign();
-			this.expandButton.width = this.expandButton.height = 8;
+			this.expandButton.width = this.expandButton.height = 12;
 			this.expandButton.addEventListener(MouseEvent.MOUSE_DOWN, this.onExpandPress);
 			this.expanded = true;
 			this.proper();
@@ -80,6 +80,10 @@
 			try{
 				this.sons.removeChild(branch);
 			}catch(error:ArgumentError){};
+			if(this.sonCount==0){
+				this.expanded = true;
+				InternalConcept(this.base).checkButtons();
+			}
 			this.mindMap.conceptRemoved(InternalConcept(branch.base));
 		}
 		public function getConceptById(id:int):Concept {