diff --git a/Classes/PHPExcel/Chart/DataSeries.php b/Classes/PHPExcel/Chart/DataSeries.php
index b58b4025..50e3a0f1 100644
--- a/Classes/PHPExcel/Chart/DataSeries.php
+++ b/Classes/PHPExcel/Chart/DataSeries.php
@@ -146,6 +146,7 @@ class PHPExcel_Chart_DataSeries
 		if ((count($plotLabel) == 0) || (is_null($plotLabel[$keys[0]]))) {
 			$plotLabel[$keys[0]] = new PHPExcel_Chart_DataSeriesValues();
 		}
+
 		$this->_plotLabel = $plotLabel;
 		if ((count($plotCategory) == 0) || (is_null($plotCategory[$keys[0]]))) {
 			$plotCategory[$keys[0]] = new PHPExcel_Chart_DataSeriesValues();
@@ -337,13 +338,16 @@ class PHPExcel_Chart_DataSeries
 
 	public function refresh(PHPExcel_Worksheet $worksheet) {
 	    foreach($this->_plotValues as $plotValues) {
-			$plotValues->refresh($worksheet);
+			if ($plotValues !== NULL)
+				$plotValues->refresh($worksheet);
 		}
 		foreach($this->_plotLabel as $plotValues) {
-			$plotValues->refresh($worksheet);
+			if ($plotValues !== NULL)
+				$plotValues->refresh($worksheet);
 		}
 		foreach($this->_plotCategory as $plotValues) {
-			$plotValues->refresh($worksheet);
+			if ($plotValues !== NULL)
+				$plotValues->refresh($worksheet);
 		}
 	}
 
diff --git a/Classes/PHPExcel/Reader/Excel2007/Chart.php b/Classes/PHPExcel/Reader/Excel2007/Chart.php
index 865fb3d7..4a6981ca 100644
--- a/Classes/PHPExcel/Reader/Excel2007/Chart.php
+++ b/Classes/PHPExcel/Reader/Excel2007/Chart.php
@@ -305,6 +305,13 @@ class PHPExcel_Reader_Excel2007_Chart
 			$seriesData['pointCount'] = count($seriesData['dataValues']);
 
 			return new PHPExcel_Chart_DataSeriesValues('String',$seriesSource,$seriesData['formatCode'],$seriesData['pointCount'],$seriesData['dataValues'],$marker,$smoothLine);
+		} elseif (isset($seriesDetail->v)) {
+			$seriesData = array( 'formatCode'	=> '@',
+								 'pointCount'	=> 1,
+								 'dataValues'	=> array((string) $seriesDetail->v)
+							   );
+
+			return new PHPExcel_Chart_DataSeriesValues('String',NULL,'@',1,$seriesData['dataValues'],$marker,$smoothLine);
 		}
 		return null;
 	}	//	function _chartDataSeriesValueSet()
diff --git a/Documentation/Functionality Cross-Reference.xls b/Documentation/Functionality Cross-Reference.xls
index 995ceeaa..8df18cd5 100644
Binary files a/Documentation/Functionality Cross-Reference.xls and b/Documentation/Functionality Cross-Reference.xls differ
diff --git a/changelog.txt b/changelog.txt
index c0558021..faac4ebd 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -101,6 +101,7 @@ Fixed in develop branch:
 - Bugfix:   (MBaker)     Work item 18377 - Chart Title compatibility on Excel 2007
 - Bugfix:   (MBaker)     Work item 18146 - Chart Refresh returning cell reference rather than values
 - Bugfix:   (MBaker)     Work item 18145 - Autoshape being identified in twoCellAnchor when includeCharts is TRUE triggering load error
+- Bugfix:   (MBaker)     Work item 18325 - v-type texts for series labels now recognised and parsed correctly
 
 
 2012-05-19 (v1.7.7):
diff --git a/unitTests/Classes/PHPExcel/Cell/DataTypeTest.php b/unitTests/Classes/PHPExcel/Cell/DataTypeTest.php
new file mode 100644
index 00000000..c17c5d0f
--- /dev/null
+++ b/unitTests/Classes/PHPExcel/Cell/DataTypeTest.php
@@ -0,0 +1,24 @@
+<?php
+
+
+class DataTypeTest extends PHPUnit_Framework_TestCase
+{
+
+    public function setUp()
+    {
+        if (!defined('PHPEXCEL_ROOT'))
+        {
+            define('PHPEXCEL_ROOT', APPLICATION_PATH . '/');
+        }
+        require_once(PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php');
+	}
+
+	public function testGetErrorCodes()
+	{
+		$result = call_user_func(array('PHPExcel_Cell_DataType','getErrorCodes'));
+		$this->assertInternalType('array', $result);
+		$this->assertGreaterThan(0, count($result));
+		$this->assertArrayHasKey('#NULL!', $result);
+	}
+
+}