diff --git a/source/gameengine/Converter/BL_ActionActuator.cpp b/source/gameengine/Converter/BL_ActionActuator.cpp
index 0289ec42d74..22ee2371e8c 100644
--- a/source/gameengine/Converter/BL_ActionActuator.cpp
+++ b/source/gameengine/Converter/BL_ActionActuator.cpp
@@ -166,18 +166,28 @@ bool BL_ActionActuator::Update(double curtime, bool frame)
 	
 	// result = true if animation has to be continued, false if animation stops
 	// maybe there are events for us in the queue !
-	
-	for (vector<CValue*>::iterator i=m_events.end(); !(i==m_events.begin());)
+	if (frame)
 	{
-		i--;
-		if ((*i)->GetNumber() == 0.0f)
+		for (vector<CValue*>::iterator i=m_events.end(); !(i==m_events.begin());)
 		{
-			bNegativeEvent = true;
+			i--;
+			if ((*i)->GetNumber() == 0.0f)
+				bNegativeEvent = true;
+			else
+				bPositiveEvent= true;
+			(*i)->Release();
+			m_events.pop_back();
+		}
+		
+		if (bPositiveEvent)
+			m_flag |= ACT_FLAG_ACTIVE;
+		
+		if (bNegativeEvent)
+		{
+			if (!(m_flag & ACT_FLAG_ACTIVE))
+				return false;
+			m_flag &= ~ACT_FLAG_ACTIVE;
 		}
-		else
-			bPositiveEvent= true;
-		(*i)->Release();
-		m_events.pop_back();
 	}
 	
 	/*	We know that action actuators have been discarded from all non armature objects:
@@ -236,7 +246,7 @@ bool BL_ActionActuator::Update(double curtime, bool frame)
 			if (!(m_flag & ACT_FLAG_LOCKINPUT)){
 				m_flag &= ~ACT_FLAG_REVERSE;
 				m_flag |= ACT_FLAG_LOCKINPUT;
-				m_starttime = curtime;
+				SetStartTime(curtime);
 			}
 		}
 		else if (bNegativeEvent){
@@ -324,6 +334,7 @@ bool BL_ActionActuator::Update(double curtime, bool frame)
 				m_localtime = m_endframe;
 				m_flag &= ~ACT_FLAG_LOCKINPUT;
 			}
+			SetStartTime(curtime);
 		}
 		break;
 	case ACT_ACTION_PLAY:
diff --git a/source/gameengine/Converter/BL_ActionActuator.h b/source/gameengine/Converter/BL_ActionActuator.h
index 0c1eb780bcb..1c3f57e965a 100644
--- a/source/gameengine/Converter/BL_ActionActuator.h
+++ b/source/gameengine/Converter/BL_ActionActuator.h
@@ -52,22 +52,22 @@ public:
 						PyTypeObject* T=&Type) 
 		: SCA_IActuator(gameobj,T),
 		
-		m_blendframe(0),
 		m_lastpos(0, 0, 0),
+		m_blendframe(0),
 		m_flag(0),
 		m_startframe (starttime),
 		m_endframe(endtime) ,
 		m_localtime(starttime),
 		m_lastUpdate(-1),
-		m_playtype(playtype),
 		m_blendin(blendin),
-		m_priority(priority),
 		m_stridelength(stride),
+		m_playtype(playtype),
+		m_priority(priority),
 		m_pose(NULL),
 		m_blendpose(NULL),
 		m_userpose(NULL),
-		m_propname(propname), 
-		m_action(action)
+		m_action(action),
+		m_propname(propname)
 	{
 	};
 	virtual ~BL_ActionActuator();
@@ -115,8 +115,8 @@ protected:
 	void SetLocalTime(float curtime);
 	bool ClampLocalTime();
 
-	float	m_blendframe;
 	MT_Point3	m_lastpos;
+	float	m_blendframe;
 	int		m_flag;
 	/** The frame this action starts */
 	float	m_startframe;
@@ -128,23 +128,23 @@ protected:
 	float	m_localtime;
 	
 	float	m_lastUpdate;
-	short	m_playtype;
 	float	m_blendin;
 	float	m_blendstart;
-	short	m_priority;
 	float	m_stridelength;
+	short	m_playtype;
+	short	m_priority;
 	struct bPose* m_pose;
 	struct bPose* m_blendpose;
 	struct bPose* m_userpose;
-	STR_String	m_propname;
 	struct bAction *m_action;
-
+	STR_String	m_propname;
 };
 
 enum {
 	ACT_FLAG_REVERSE	= 0x00000001,
 	ACT_FLAG_LOCKINPUT	= 0x00000002,
-	ACT_FLAG_KEYUP		= 0x00000004
+	ACT_FLAG_KEYUP		= 0x00000004,
+	ACT_FLAG_ACTIVE		= 0x00000008
 };
 
 #endif
diff --git a/source/gameengine/Ketsji/KX_IpoActuator.cpp b/source/gameengine/Ketsji/KX_IpoActuator.cpp
index ea9fe8554cc..37c0578987c 100644
--- a/source/gameengine/Ketsji/KX_IpoActuator.cpp
+++ b/source/gameengine/Ketsji/KX_IpoActuator.cpp
@@ -112,14 +112,13 @@ KX_IpoActuator::KX_IpoActuator(SCA_IObject* gameobj,
 	m_endframe(endtime),
 	m_recurse(recurse),
 	m_localtime(starttime),
-	m_starttime(-1.0),
 	m_direction(1),
 	m_propname(propname),
 	m_ipo_as_force(ipo_as_force),
 	m_force_ipo_local(force_ipo_local),
 	m_type((IpoActType)acttype)
 {
-	// intentionally empty
+	m_starttime = -2.0*fabs(m_endframe - m_startframe) - 1.0;
 }
 
 void KX_IpoActuator::SetStart(float starttime) 
@@ -189,10 +188,11 @@ bool KX_IpoActuator::Update(double curtime, bool frame)
 	// result = true if animation has to be continued, false if animation stops
 	// maybe there are events for us in the queue !
 	bool bNegativeEvent = false;
-	int numevents = m_events.size();
+	int numevents = 0;
 
 	if (frame)
 	{
+		numevents = m_events.size();
 		for (vector<CValue*>::iterator i=m_events.end(); !(i==m_events.begin());)
 		{
 			--i;
@@ -204,15 +204,13 @@ bool KX_IpoActuator::Update(double curtime, bool frame)
 		m_events.clear();
 	
 		if (bNegativeEvent)
-		{
 			RemoveAllEvents();
-		}
 	}
 	
 	double  start_smaller_then_end = ( m_startframe < m_endframe ? 1.0 : -1.0);
 
 	bool result=true;
-	if (m_starttime < 0.0)
+	if (m_starttime < -2.0*start_smaller_then_end*(m_endframe - m_startframe))
 		m_starttime = curtime;
 	
 	switch (m_type)
@@ -273,7 +271,7 @@ bool KX_IpoActuator::Update(double curtime, bool frame)
 	}
 	case KX_ACT_IPO_FLIPPER:
 	{
-		result = true;
+		result = !(bNegativeEvent && (m_localtime == m_startframe));
 		if (numevents)
 		{
 			if (bNegativeEvent)
@@ -404,7 +402,7 @@ bool KX_IpoActuator::Update(double curtime, bool frame)
 	}
 	
 	if (!result && m_type != KX_ACT_IPO_LOOPSTOP)
-		m_starttime = -1.0;
+		m_starttime = -2.0*start_smaller_then_end*(m_endframe - m_startframe) - 1.0;
 
 	return result;
 }