Index: /CKEditor/trunk/CHANGES.html
===================================================================
--- /CKEditor/trunk/CHANGES.html	(revision 6990)
+++ /CKEditor/trunk/CHANGES.html	(revision 6991)
@@ -90,4 +90,5 @@
 		<li><a href="http://dev.ckeditor.com/ticket/6975">#6975</a> : Definition list crashes IE6/7 on html output.</li>
 		<li><a href="http://dev.ckeditor.com/ticket/7492">#7492</a> : Overrides of Styles don't work on the same element tag.</li>
+		<li><a href="http://dev.ckeditor.com/ticket/7841">#7841</a> : Deleting a column with a deleted cell in one of the rows not working.</li>
 		<li>Updated the following language files:<ul>
 			<li><a href="http://dev.ckeditor.com/ticket/7834">#7834</a> : Dutch;</li>
Index: /CKEditor/trunk/_source/plugins/tabletools/plugin.js
===================================================================
--- /CKEditor/trunk/_source/plugins/tabletools/plugin.js	(revision 6990)
+++ /CKEditor/trunk/_source/plugins/tabletools/plugin.js	(revision 6991)
@@ -342,14 +342,17 @@
 					cell = new CKEDITOR.dom.element( mapRow[ i ] );
 
-				if ( cell.$.colSpan == 1 )
-					cell.remove();
-				// Reduce the col spans.
-				else
-					cell.$.colSpan -= 1;
-
-				j += cell.$.rowSpan - 1;
-
-				if ( !row.$.cells.length )
-					rowsToDelete.push( row );
+				if ( cell.$ )
+				{
+					if ( cell.$.colSpan == 1 )
+						cell.remove();
+					// Reduce the col spans.
+					else
+						cell.$.colSpan -= 1;
+
+					j += cell.$.rowSpan - 1;
+
+					if ( !row.$.cells.length )
+						rowsToDelete.push( row );
+				}
 			}
 		}