diff --git a/Classes/PHPExcel/Writer/HTML.php b/Classes/PHPExcel/Writer/HTML.php
index e0a2d784..a003b6d2 100644
--- a/Classes/PHPExcel/Writer/HTML.php
+++ b/Classes/PHPExcel/Writer/HTML.php
@@ -428,7 +428,7 @@ class PHPExcel_Writer_HTML extends PHPExcel_Writer_Abstract implements PHPExcel_
 					while($column++ < $dimension[1][0]) {
 						// Cell exists?
 						if ($sheet->cellExistsByColumnAndRow($column, $row)) {
-							$rowData[$column] = $sheet->getCellByColumnAndRow($column, $row);
+							$rowData[$column] = PHPExcel_Cell::stringFromColumnIndex($column) . $row;
 						} else {
 							$rowData[$column] = '';
 						}
@@ -1114,9 +1114,9 @@ class PHPExcel_Writer_HTML extends PHPExcel_Writer_Abstract implements PHPExcel_
 
 			// Write cells
 			$colNum = 0;
-			foreach ($pValues as $cell) {
+			foreach ($pValues as $cellAddress) {
+                $cell = ($cellAddress > '') ? $pSheet->getCell($cellAddress) : '';
 				$coordinate = PHPExcel_Cell::stringFromColumnIndex($colNum) . ($pRow + 1);
-
 				if (!$this->_useInlineCss) {
 					$cssClass = '';
 					$cssClass = 'column' . $colNum;
diff --git a/changelog.txt b/changelog.txt
index d213be5e..db0bc146 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -40,6 +40,7 @@ Fixed in develop branch for release v1.8.0:
 - Bugfix:   (PowerKiKi)       Work Item GH-273  - ISTEXT() return wrong result if referencing an empty but formatted cell
 - Bugfix:   (PowerKiKi)       Work Item GH-270/GH-31  - Binary comparison of strings are case insensitive
 - Bugfix:   (MBaker)          Work Item GH-275  - Insert New Row/Column Before is not correctly updating formula references
+- Bugfix:   (MBaker)          Work Item GH-257  - Passing an array of cells to _generateRow() in the HTML/PDF Writer causes caching problems with last cell in the range
 - Feature:  (amerov)                            - Implementation of the Excel HLOOKUP() function
 - Feature:  (MBaker)                            - Added "Quote Prefix" to style settings (Excel2007 Reader and Writer only)
 - Feature:  (MBaker)                            - Added Horizontal FILL alignment for Excel5 and Excel2007 Readers/Writers, and Horizontal DISTRIBUTED alignment for Excel2007 Reader/Writer