diff --git a/Headers/AppKit/NSComboBoxCell.h b/Headers/AppKit/NSComboBoxCell.h
index c4be885ad..d4d6f498e 100644
--- a/Headers/AppKit/NSComboBoxCell.h
+++ b/Headers/AppKit/NSComboBoxCell.h
@@ -97,6 +97,11 @@
 - (int)indexOfItemWithObjectValue:(id)object;
 - (NSArray *)objectValues;
 
+- (BOOL) trackMouse: (NSEvent *)theEvent 
+	     inRect: (NSRect)cellFrame
+	     ofView: (NSView *)controlView 
+       untilMouseUp: (BOOL)flag;
+
 #ifndef	STRICT_OPENSTEP
 /* text completion */
 - (NSString *)completedString:(NSString *)substring;
diff --git a/Source/NSComboBox.m b/Source/NSComboBox.m
index f4aa7c30d..b64782412 100644
--- a/Source/NSComboBox.m
+++ b/Source/NSComboBox.m
@@ -456,8 +456,8 @@ static NSNotificationCenter *nc;
 - (void) mouseDown: (NSEvent*)theEvent
 {
   BOOL buttonClicked; 
-  // buttonClicked is set to the value YNO when the click occurs in the text cell
-  // and to the value YES when it occurs in the button cell
+  // buttonClicked is set to the value NO when the click occurs in the text cell
+  // and to the value YES when it occurs in the button cell.
   
   buttonClicked = [_cell trackMouse: theEvent inRect: [self bounds] 
     ofView: self untilMouseUp: YES];
diff --git a/Source/NSComboBoxCell.m b/Source/NSComboBoxCell.m
index b50205d4b..3ba9d4e89 100644
--- a/Source/NSComboBoxCell.m
+++ b/Source/NSComboBoxCell.m
@@ -1278,10 +1278,10 @@ numberOfRowsInColumn: (int)column
  * You rarely needs to call this method explicitly in your code.
  * By default, the implementation of this method first checks whether the combo
  * box cell uses a data source and whether the data source responds to 
- * comboBox:completedString: or comboBoxCell:completedString:. When it is the
- * case, it uses this method to return <var>str</var>, else this method goes
- * through the combo box cell items one by one and returns the first item found
- * starting with <var>substring</var>.
+ * <code>comboBox:completedString:</code> or <code>comboBoxCell:completedString:</code>. 
+ * When it is the case, it uses this method to return <var>str</var>, else this
+ * method goes through the combo box cell items one by one and returns the first
+ * item found starting with <var>substring</var>.
  * In the case, you want another behavior, you can override this method without
  * need to call the superclass method.
  */