Index: trunk/src/obj_elem.c
===================================================================
--- trunk/src/obj_elem.c	(revision 15585)
+++ trunk/src/obj_elem.c	(revision 15586)
@@ -493,8 +493,9 @@
 	if (PCB_FLAG_TEST(PCB_FLAG_LOCK, Element))
 		return pcb_false;
 	pcb_elem_invalidate_erase(Element);
-	pcb_undo_add_obj_to_mirror(PCB_TYPE_ELEMENT, Element, Element, Element, yoff);
-	pcb_element_mirror(PCB->Data, Element, yoff);
+abort();
+/*	pcb_undo_add_obj_to_mirror(PCB_TYPE_ELEMENT, Element, Element, Element, yoff);*/
+/*	pcb_element_mirror(PCB->Data, Element, yoff);*/
 	pcb_elem_invalidate_draw(Element);
 	return pcb_true;
 }
Index: trunk/src/undo_old.c
===================================================================
--- trunk/src/undo_old.c	(revision 15585)
+++ trunk/src/undo_old.c	(revision 15586)
@@ -862,11 +862,6 @@
 			return 0;
 		break;
 
-	case PCB_UNDO_MIRROR:
-		if (UndoMirror(ptr))
-			return 0;
-		break;
-
 	case PCB_UNDO_OTHERSIDE:
 		if (UndoOtherSide(ptr))
 			return 0;
@@ -890,19 +885,6 @@
 }
 
 /* ---------------------------------------------------------------------------
- * adds an object to the list of mirrored objects
- */
-void pcb_undo_add_obj_to_mirror(int Type, void *Ptr1, void *Ptr2, void *Ptr3, pcb_coord_t yoff)
-{
-	UndoListTypePtr undo;
-
-	if (!Locked) {
-		undo = GetUndoSlot(PCB_UNDO_MIRROR, PCB_OBJECT_ID(Ptr3), Type);
-		undo->Data.Move.DY = yoff;
-	}
-}
-
-/* ---------------------------------------------------------------------------
  * adds an subc to the list of objects tossed to the other side
  */
 void pcb_undo_add_subc_to_otherside(int Type, void *Ptr1, void *Ptr2, void *Ptr3, pcb_coord_t yoff)
@@ -1335,7 +1317,6 @@
 		case PCB_UNDO_MOVETOLAYER: return "movetolayer";
 		case PCB_UNDO_FLAG: return "flag";
 		case PCB_UNDO_CHANGESIZE: return "changesize";
-		case PCB_UNDO_MIRROR: return "mirror";
 		case PCB_UNDO_OTHERSIDE: return "otherside";
 		case PCB_UNDO_CHANGECLEARSIZE: return "chngeclearsize";
 		case PCB_UNDO_CHANGEANGLES: return "changeangles";
Index: trunk/src/undo_old.h
===================================================================
--- trunk/src/undo_old.h	(revision 15585)
+++ trunk/src/undo_old.h	(revision 15586)
@@ -49,7 +49,6 @@
 void pcb_undo_add_obj_to_rotate90(int, void *, void *, void *, pcb_coord_t, pcb_coord_t, pcb_uint8_t);
 void pcb_undo_add_obj_to_rotate(int Type, void *Ptr1, void *Ptr2, void *Ptr3, pcb_coord_t CenterX, pcb_coord_t CenterY, pcb_angle_t angle);
 void pcb_undo_add_obj_to_create(int, void *, void *, void *);
-void pcb_undo_add_obj_to_mirror(int, void *, void *, void *, pcb_coord_t);
 void pcb_undo_add_subc_to_otherside(int Type, void *Ptr1, void *Ptr2, void *Ptr3, pcb_coord_t yoff);
 void pcb_undo_add_obj_to_move_to_layer(int, void *, void *, void *);
 void pcb_undo_add_obj_to_flag(void *obj);
@@ -78,7 +77,6 @@
 	PCB_UNDO_MOVETOLAYER       = 0x000200, /* moving objects to */
 	PCB_UNDO_FLAG              = 0x000400, /* toggling SELECTED flag */
 	PCB_UNDO_CHANGESIZE        = 0x000800, /* change size of object */
-	PCB_UNDO_MIRROR            = 0x002000, /* change side of board */
 	PCB_UNDO_CHANGECLEARSIZE   = 0x004000, /* change clearance size */
 	PCB_UNDO_CHANGEANGLES      = 0x010000, /* change arc angles */
 	PCB_UNDO_LAYERMOVE         = 0x020000, /* layer new/delete/move */