diff --git a/Bullet_User_Manual.pdf b/Bullet_User_Manual.pdf
index 87eae32d7..86f7c33cb 100644
Binary files a/Bullet_User_Manual.pdf and b/Bullet_User_Manual.pdf differ
diff --git a/Demos/Benchmarks/BenchmarkDemo.cpp b/Demos/Benchmarks/BenchmarkDemo.cpp
index 2b0c26754..a9934806c 100644
--- a/Demos/Benchmarks/BenchmarkDemo.cpp
+++ b/Demos/Benchmarks/BenchmarkDemo.cpp
@@ -29,7 +29,7 @@ subject to the following restrictions:
 #include "BulletMultiThreaded/SpuGatheringCollisionDispatcher.h"
 #include "BulletMultiThreaded/SequentialThreadSupport.h"
 #include "BulletMultiThreaded/SpuNarrowPhaseCollisionTask/SpuGatheringCollisionTask.h"
-
+#include "BulletCollision/CollisionDispatch/btSimulationIslandManager.h"
 
 
 
@@ -221,7 +221,7 @@ void BenchmarkDemo::clientMoveAndDisplay()
 	///step the simulation
 	if (m_dynamicsWorld)
 	{
-		m_dynamicsWorld->stepSimulation(ms / 1000000.f);
+		m_dynamicsWorld->stepSimulation(btScalar(1./60.));
 		//optional but useful: debug drawing
 		m_dynamicsWorld->debugDrawWorld();
 	}
@@ -300,7 +300,10 @@ void	BenchmarkDemo::initPhysics()
 	
 	m_solver = sol;
 
-	m_dynamicsWorld = new btDiscreteDynamicsWorld(m_dispatcher,m_overlappingPairCache,m_solver,m_collisionConfiguration);
+	btDiscreteDynamicsWorld* dynamicsWorld;
+	m_dynamicsWorld = dynamicsWorld = new btDiscreteDynamicsWorld(m_dispatcher,m_overlappingPairCache,m_solver,m_collisionConfiguration);
+	dynamicsWorld->getSimulationIslandManager()->setSplitIslands(false);
+
 
 	m_dynamicsWorld->setGravity(btVector3(0,-10,0));
 
diff --git a/Demos/Benchmarks/main.cpp b/Demos/Benchmarks/main.cpp
index c65f26cc9..d038f76fd 100644
--- a/Demos/Benchmarks/main.cpp
+++ b/Demos/Benchmarks/main.cpp
@@ -26,8 +26,8 @@ int main(int argc,char** argv)
 {
 	GLDebugDrawer	gDebugDrawer;
 
-//	BenchmarkDemo1 benchmarkDemo;
-	BenchmarkDemo2 benchmarkDemo;
+	BenchmarkDemo1 benchmarkDemo;
+//	BenchmarkDemo2 benchmarkDemo;
 //	BenchmarkDemo3 benchmarkDemo;
 //	BenchmarkDemo4 benchmarkDemo;
 //	BenchmarkDemo5 benchmarkDemo;
diff --git a/Demos/CharacterDemo/CharacterDemo.cpp b/Demos/CharacterDemo/CharacterDemo.cpp
index 02e353cac..07bb11223 100644
--- a/Demos/CharacterDemo/CharacterDemo.cpp
+++ b/Demos/CharacterDemo/CharacterDemo.cpp
@@ -139,7 +139,7 @@ void CharacterDemo::initPhysics()
 	///only collide with static for now (no interaction with dynamic objects)
 	m_dynamicsWorld->addCollisionObject(m_ghostObject,btBroadphaseProxy::CharacterFilter, btBroadphaseProxy::StaticFilter|btBroadphaseProxy::DefaultFilter);
 
-	m_dynamicsWorld->addCharacter(m_character);
+	m_dynamicsWorld->addAction(m_character);
 
 
 	///////////////
diff --git a/Demos/MovingConcaveDemo/ConcaveDemo.h b/Demos/MovingConcaveDemo/ConcaveDemo.h
index d16e54d30..7f59e90a3 100644
--- a/Demos/MovingConcaveDemo/ConcaveDemo.h
+++ b/Demos/MovingConcaveDemo/ConcaveDemo.h
@@ -39,7 +39,7 @@ class ConcaveDemo : public DemoApplication
 	virtual void keyboardCallback(unsigned char key, int x, int y);
 
 	///Demo functions
-	void	shootTrimesh(const btVector3& destination);
+	void	shootTrimesh(const btVector3& startPosition,const btVector3& destination);
 
 
 };
diff --git a/Demos/MovingConcaveDemo/ConcavePhysicsDemo.cpp b/Demos/MovingConcaveDemo/ConcavePhysicsDemo.cpp
index ff728385f..ccaa84124 100644
--- a/Demos/MovingConcaveDemo/ConcavePhysicsDemo.cpp
+++ b/Demos/MovingConcaveDemo/ConcavePhysicsDemo.cpp
@@ -1717,6 +1717,10 @@ void	ConcaveDemo::initPhysics()
 		}
 	}
 
+	shootTrimesh(btVector3(0,10,0),btVector3(0,0,0));
+
+	shootTrimesh(btVector3(0,20,0),btVector3(0,10,0));
+
 	//m_debugMode |= btIDebugDraw::DBG_DrawWireframe;
 
 }
@@ -1834,7 +1838,7 @@ void ConcaveDemo::keyboardCallback(unsigned char key, int x, int y)
 
 		case '.':
 		{
-			shootTrimesh(getCameraTargetPosition());
+			shootTrimesh(getCameraPosition(),getCameraTargetPosition());
 			break;
 		}
 
@@ -1862,7 +1866,7 @@ void ConcaveDemo::keyboardCallback(unsigned char key, int x, int y)
 }
 
 
-void ConcaveDemo::shootTrimesh(const btVector3& destination)
+void ConcaveDemo::shootTrimesh(const btVector3& startPosition,const btVector3& destination)
 {
 
 	if (m_dynamicsWorld)
@@ -1870,16 +1874,15 @@ void ConcaveDemo::shootTrimesh(const btVector3& destination)
 		float mass = 4.f;
 		btTransform startTransform;
 		startTransform.setIdentity();
-		btVector3 camPos = getCameraPosition();
-		startTransform.setOrigin(camPos);
+		startTransform.setOrigin(startPosition);
 
 		btRigidBody* body = this->localCreateRigidBody(mass, startTransform,m_trimeshShape);
 
-		btVector3 linVel(destination[0]-camPos[0],destination[1]-camPos[1],destination[2]-camPos[2]);
+		btVector3 linVel(destination[0]-startPosition[0],destination[1]-startPosition[1],destination[2]-startPosition[2]);
 		linVel.normalize();
 		linVel*=m_ShootBoxInitialSpeed*0.25;
 
-		body->getWorldTransform().setOrigin(camPos);
+		body->getWorldTransform().setOrigin(startPosition);
 		body->getWorldTransform().setRotation(btQuaternion(0,0,0,1));
 		body->setLinearVelocity(linVel);
 		body->setAngularVelocity(btVector3(0,0,0));