 		{
 			if (!_invalidMinMax)
 				return ;
-			
+				
 			_invalidMinMax = false;
 			
 			var size		: uint	= format.dwordsPerVertex;

					+ "is not set to StreamUsage.WRITE."
				);
			}
		}

		public static function concat(streams : Vector.<IVertexStream>, usage : uint) : VertexStream


		public function disposeLocalData(waitForUpload : Boolean = true) : void
		{
			if (_dataLocked)
				throw new Error("Stream data can not be disposed since it's locked for update");
			if (waitForUpload)
				_localDispose = true;
			else
