diff --git a/Demos/ConcaveDemo/ConcavePhysicsDemo.cpp b/Demos/ConcaveDemo/ConcavePhysicsDemo.cpp
index d87887c33..fe41c8ba0 100644
--- a/Demos/ConcaveDemo/ConcavePhysicsDemo.cpp
+++ b/Demos/ConcaveDemo/ConcavePhysicsDemo.cpp
@@ -220,8 +220,8 @@ void	ConcaveDemo::initPhysics()
 	{
 		for (int i=0;i<10;i++)
 		{
-			//btCollisionShape* boxShape = new btBoxShape(btVector3(1,1,1));
-			btCollisionShape* boxShape = new btSphereShape(1.f);
+			btCollisionShape* boxShape = new btBoxShape(btVector3(1,1,1));
+			//btCollisionShape* boxShape = new btSphereShape(1.f);
 			startTransform.setOrigin(btVector3(2*i,10,1));
 			localCreateRigidBody(1, startTransform,boxShape);
 		}
diff --git a/Extras/BulletMultiThreaded/SpuNarrowPhaseCollisionTask/SpuGatheringCollisionTask.cpp b/Extras/BulletMultiThreaded/SpuNarrowPhaseCollisionTask/SpuGatheringCollisionTask.cpp
index ae43a4064..9cdc6a5cc 100644
--- a/Extras/BulletMultiThreaded/SpuNarrowPhaseCollisionTask/SpuGatheringCollisionTask.cpp
+++ b/Extras/BulletMultiThreaded/SpuNarrowPhaseCollisionTask/SpuGatheringCollisionTask.cpp
@@ -57,8 +57,8 @@ struct	CollisionTask_LocalStoreMemory
 
 	static const int maxShapeSize = MAX_SHAPE_SIZE;//todo: make some compile-time assert that this is value is larger then sizeof(btCollisionShape)
 
-	ATTRIBUTE_ALIGNED16(char	gCollisionShape0[maxShapeSize]);
-	ATTRIBUTE_ALIGNED16(char	gCollisionShape1[maxShapeSize]);
+	ATTRIBUTE_ALIGNED16(char	gCollisionShape0[MAX_SHAPE_SIZE+1]);//todo: check out why leaving out '+1' causes troubles
+	ATTRIBUTE_ALIGNED16(char	gCollisionShape1[MAX_SHAPE_SIZE+1]);
 
 	ATTRIBUTE_ALIGNED16(int	spuIndices[16]);