diff --git a/release/scripts/startup/bl_ui/properties_animviz.py b/release/scripts/startup/bl_ui/properties_animviz.py
index 3f25006766e..1f798f46590 100644
--- a/release/scripts/startup/bl_ui/properties_animviz.py
+++ b/release/scripts/startup/bl_ui/properties_animviz.py
@@ -65,12 +65,10 @@ class MotionPathButtonsPanel():
             sub.prop(mpath, "frame_start", text="From")
             sub.prop(mpath, "frame_end", text="To")
             
-            sub = col.column() # align=True
-            sub.operator_context = 'EXEC_DEFAULT'
             if bones:
-                col.operator("pose.paths_calculate", text="Update", icon='BONE_DATA')
+                col.operator("pose.paths_update", text="Update Paths", icon='BONE_DATA')
             else:
-                col.operator("object.paths_calculate", text="Update", icon='OBJECT_DATA')
+                col.operator("object.paths_update", text="Update Paths", icon='OBJECT_DATA')
         else:
             col.label(text="Not available yet...", icon='ERROR')
             col.label(text="Calculate Paths first", icon='INFO')
diff --git a/source/blender/editors/armature/armature_intern.h b/source/blender/editors/armature/armature_intern.h
index 72d261ec187..11129f34f3e 100644
--- a/source/blender/editors/armature/armature_intern.h
+++ b/source/blender/editors/armature/armature_intern.h
@@ -117,6 +117,7 @@ void POSE_OT_group_select(struct wmOperatorType *ot);
 void POSE_OT_group_deselect(struct wmOperatorType *ot);
 
 void POSE_OT_paths_calculate(struct wmOperatorType *ot);
+void POSE_OT_paths_update(struct wmOperatorType *ot);
 void POSE_OT_paths_clear(struct wmOperatorType *ot);
 
 void POSE_OT_autoside_names(struct wmOperatorType *ot);
diff --git a/source/blender/editors/armature/armature_ops.c b/source/blender/editors/armature/armature_ops.c
index 9a15a100179..d7814e1eb4c 100644
--- a/source/blender/editors/armature/armature_ops.c
+++ b/source/blender/editors/armature/armature_ops.c
@@ -133,6 +133,7 @@ void ED_operatortypes_armature(void)
 	WM_operatortype_append(POSE_OT_group_deselect);
 	
 	WM_operatortype_append(POSE_OT_paths_calculate);
+	WM_operatortype_append(POSE_OT_paths_update);
 	WM_operatortype_append(POSE_OT_paths_clear);
 	
 	WM_operatortype_append(POSE_OT_autoside_names);
diff --git a/source/blender/editors/armature/poseobject.c b/source/blender/editors/armature/poseobject.c
index 15d2d32c073..2ed5421e8ba 100644
--- a/source/blender/editors/armature/poseobject.c
+++ b/source/blender/editors/armature/poseobject.c
@@ -197,6 +197,7 @@ void ED_pose_recalculate_paths(Scene *scene, Object *ob)
 	BLI_freelistN(&targets);
 }
 
+
 /* show popup to determine settings */
 static int pose_calculate_paths_invoke(bContext *C, wmOperator *op, wmEvent *UNUSED(event))
 {	
@@ -291,6 +292,41 @@ void POSE_OT_paths_calculate(wmOperatorType *ot)
 
 /* --------- */
 
+static int pose_update_paths_exec(bContext *C, wmOperator *UNUSED(op))
+{
+	Object *ob = BKE_object_pose_armature_get(CTX_data_active_object(C));
+	Scene *scene = CTX_data_scene(C);
+	
+	if (ELEM(NULL, ob, scene))
+		return OPERATOR_CANCELLED;
+		
+	/* calculate the bones that now have motionpaths... */
+	// TODO: only make for the selected bones?
+	ED_pose_recalculate_paths(scene, ob);
+	
+	/* notifiers for updates */
+	WM_event_add_notifier(C, NC_OBJECT | ND_POSE, ob);
+	
+	return OPERATOR_FINISHED;
+}
+
+void POSE_OT_paths_update(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name = "Update Bone Paths";
+	ot->idname = "POSE_OT_paths_update";
+	ot->description = "Recalculate paths for bones that already have them";
+	
+	/* api callbakcs */
+	ot->exec = pose_update_paths_exec;
+	ot->poll = ED_operator_posemode; /* TODO: this should probably check for active bone and/or existing paths */
+	
+	/* flags */
+	ot->flag = OPTYPE_REGISTER|OPTYPE_UNDO;
+}
+
+/* --------- */
+
 /* for the object with pose/action: clear path curves for selected bones only */
 static void ED_pose_clear_paths(Object *ob)
 {
diff --git a/source/blender/editors/object/object_edit.c b/source/blender/editors/object/object_edit.c
index dfc99f09a96..96099d51dc9 100644
--- a/source/blender/editors/object/object_edit.c
+++ b/source/blender/editors/object/object_edit.c
@@ -1125,6 +1125,7 @@ void ED_objects_recalculate_paths(bContext *C, Scene *scene)
 	BLI_freelistN(&targets);
 }
 
+
 /* show popup to determine settings */
 static int object_calculate_paths_invoke(bContext *C, wmOperator *op, wmEvent *UNUSED(event))
 {
@@ -1200,6 +1201,39 @@ void OBJECT_OT_paths_calculate(wmOperatorType *ot)
 
 /* --------- */
 
+static int object_update_paths_exec(bContext *C, wmOperator *UNUSED(op))
+{
+	Scene *scene = CTX_data_scene(C);
+	
+	if (scene == NULL)
+		return OPERATOR_CANCELLED;
+		
+	/* calculate the paths for objects that have them (and are tagged to get refreshed) */
+	ED_objects_recalculate_paths(C, scene);
+	
+	/* notifiers for updates */
+	WM_event_add_notifier(C, NC_OBJECT | ND_TRANSFORM, NULL);
+	
+	return OPERATOR_FINISHED;
+}
+
+void OBJECT_OT_paths_update(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name = "Update Object Paths";
+	ot->idname = "OBJECT_OT_paths_update";
+	ot->description = "Recalculate paths for selected objects";
+	
+	/* api callbakcs */
+	ot->exec = object_update_paths_exec;
+	ot->poll = ED_operator_object_active_editable; /* TODO: this should probably check for existing paths */
+	
+	/* flags */
+	ot->flag = OPTYPE_REGISTER|OPTYPE_UNDO;
+}
+
+/* --------- */
+
 /* Clear motion paths for selected objects only */
 void ED_objects_clear_paths(bContext *C)
 {
diff --git a/source/blender/editors/object/object_intern.h b/source/blender/editors/object/object_intern.h
index ee9d776ea3b..e834c93b0d8 100644
--- a/source/blender/editors/object/object_intern.h
+++ b/source/blender/editors/object/object_intern.h
@@ -84,6 +84,7 @@ void OBJECT_OT_proxy_make(struct wmOperatorType *ot);
 void OBJECT_OT_shade_smooth(struct wmOperatorType *ot);
 void OBJECT_OT_shade_flat(struct wmOperatorType *ot);
 void OBJECT_OT_paths_calculate(struct wmOperatorType *ot);
+void OBJECT_OT_paths_update(struct wmOperatorType *ot);
 void OBJECT_OT_paths_clear(struct wmOperatorType *ot);
 void OBJECT_OT_forcefield_toggle(struct wmOperatorType *ot);
 
diff --git a/source/blender/editors/object/object_ops.c b/source/blender/editors/object/object_ops.c
index feb7c075264..b7dc3fd7bea 100644
--- a/source/blender/editors/object/object_ops.c
+++ b/source/blender/editors/object/object_ops.c
@@ -77,6 +77,7 @@ void ED_operatortypes_object(void)
 	WM_operatortype_append(OBJECT_OT_shade_smooth);
 	WM_operatortype_append(OBJECT_OT_shade_flat);
 	WM_operatortype_append(OBJECT_OT_paths_calculate);
+	WM_operatortype_append(OBJECT_OT_paths_update);
 	WM_operatortype_append(OBJECT_OT_paths_clear);
 	WM_operatortype_append(OBJECT_OT_forcefield_toggle);
 
diff --git a/source/blender/editors/space_view3d/drawanimviz.c b/source/blender/editors/space_view3d/drawanimviz.c
index a9801012d67..f8d942b4fd1 100644
--- a/source/blender/editors/space_view3d/drawanimviz.c
+++ b/source/blender/editors/space_view3d/drawanimviz.c
@@ -88,38 +88,50 @@ void draw_motion_path_instance(Scene *scene,
 	//RegionView3D *rv3d= ar->regiondata;
 	bMotionPathVert *mpv, *mpv_start;
 	int i, stepsize = avs->path_step;
-	int sfra, efra, len;
-	
+	int sfra, efra, sind, len;
 	
 	/* get frame ranges */
 	if (avs->path_type == MOTIONPATH_TYPE_ACFRA) {
-		int sind;
-		
 		/* With "Around Current", we only choose frames from around 
-		 * the current frame to draw. However, this range is still 
-		 * restricted by the limits of the original path.
+		 * the current frame to draw.
 		 */
 		sfra = CFRA - avs->path_bc;
 		efra = CFRA + avs->path_ac;
-		if (sfra < mpath->start_frame) sfra = mpath->start_frame;
-		if (efra > mpath->end_frame) efra = mpath->end_frame;
-		
-		len = efra - sfra;
-		
-		sind = sfra - mpath->start_frame;
-		mpv_start = (mpath->points + sind);
 	}
 	else {
-		sfra = mpath->start_frame;
-		efra = sfra + mpath->length;
-		len = mpath->length;
-		mpv_start = mpath->points;
+		/* Use the current display range */
+		sfra = avs->path_sf;
+		efra = avs->path_ef;
 	}
-
+	
+	/* no matter what, we can only show what is in the cache and no more 
+	 * - abort if whole range is past ends of path
+	 * - otherwise clamp endpoints to extents of path
+	 */
+	if ((sfra > mpath->end_frame) || (efra < mpath->start_frame)) {
+		/* whole path is out of bounds */
+		return;
+	}
+	
+	if (sfra < mpath->start_frame) {
+		/* start clamp */
+		sfra = mpath->start_frame;
+	}
+	if (efra > mpath->end_frame) {
+		/* end clamp */
+		efra = mpath->end_frame;
+	}
+	
+	len = efra - sfra;
+	
 	if (len <= 0) {
 		return;
 	}
-
+	
+	/* get pointers to parts of path */
+	sind = sfra - mpath->start_frame;
+	mpv_start = (mpath->points + sind);
+	
 	/* draw curve-line of path */
 	glShadeModel(GL_SMOOTH);