diff --git a/Extras/BulletMultiThreaded/Makefile b/Extras/BulletMultiThreaded/Makefile
index 1eb5f8289..aae5ac8f3 100644
--- a/Extras/BulletMultiThreaded/Makefile
+++ b/Extras/BulletMultiThreaded/Makefile
@@ -43,8 +43,8 @@ PPU_LIBRARIES= -lstdc++ -lsupc++ -lgcc -lgcov -lspe2 -lpthread -L../../lib/ibmsd
 PPU_AR=/usr/bin/ar
 
 MakeOut :
-	rm -f -R $(OUTDIR) ; mkdir $(OUTDIR)
-
+#	rm -f -R $(OUTDIR) ; mkdir $(OUTDIR)
+	@echo "usage: make spu, make ppu, make all, or make clean"
 # SPU
 SpuTaskFile : MakeOut
 	$(SPU_GCC) $(SPU_DEFFLAGS) $(SPU_CFLAGS) $(SPU_INCLUDEDIR) -o $(OUTDIR)/SpuTaskFile.o $(SPU_TASKFILE).cpp
diff --git a/Extras/BulletMultiThreaded/SpuFakeDma.h b/Extras/BulletMultiThreaded/SpuFakeDma.h
index 45bec865b..03c347166 100644
--- a/Extras/BulletMultiThreaded/SpuFakeDma.h
+++ b/Extras/BulletMultiThreaded/SpuFakeDma.h
@@ -39,7 +39,7 @@
 		
 #include <spu_mfcio.h>		
 		
-//#define DEBUG_DMA		
+#define DEBUG_DMA		
 #ifdef DEBUG_DMA
 #define dUASSERT(a,b) if (!(a)) { printf(b);}
 #ifdef USE_ADDR64
diff --git a/Extras/BulletMultiThreaded/SpuNarrowPhaseCollisionTask/SpuContactResult.cpp b/Extras/BulletMultiThreaded/SpuNarrowPhaseCollisionTask/SpuContactResult.cpp
index a391d66ef..e7f911495 100644
--- a/Extras/BulletMultiThreaded/SpuNarrowPhaseCollisionTask/SpuContactResult.cpp
+++ b/Extras/BulletMultiThreaded/SpuNarrowPhaseCollisionTask/SpuContactResult.cpp
@@ -138,7 +138,8 @@ void SpuContactResult::writeDoubleBufferedManifold(btPersistentManifold* lsManif
     memcpy(g_manifoldDmaExport.getFront(),lsManifold,sizeof(btPersistentManifold));
 
     g_manifoldDmaExport.swapBuffers();
-    g_manifoldDmaExport.backBufferDmaPut((uint64_t)mmManifold, sizeof(btPersistentManifold), DMA_TAG(9));
+    uint64_t mmAddr = (uint32_t)mmManifold;
+    g_manifoldDmaExport.backBufferDmaPut(mmAddr, sizeof(btPersistentManifold), DMA_TAG(9));
 	// Should there be any kind of wait here?  What if somebody tries to use this tag again?  What if we call this function again really soon?
 	//no, the swapBuffers does the wait
 }
diff --git a/Extras/BulletMultiThreaded/SpuNarrowPhaseCollisionTask/SpuGatheringCollisionTask.h b/Extras/BulletMultiThreaded/SpuNarrowPhaseCollisionTask/SpuGatheringCollisionTask.h
index c84fc0856..05262d85e 100644
--- a/Extras/BulletMultiThreaded/SpuNarrowPhaseCollisionTask/SpuGatheringCollisionTask.h
+++ b/Extras/BulletMultiThreaded/SpuNarrowPhaseCollisionTask/SpuGatheringCollisionTask.h
@@ -54,6 +54,8 @@ void*	createCollisionLocalStoreMemory();
 #include <spu_mfcio.h>
 #include <SpuFakeDma.h>
 
+//#define DEBUG_LIBSPE2_SPU_TASK
+
 
 
 int main(unsigned long long speid, addr64 argp, addr64 envp)
@@ -82,8 +84,10 @@ int main(unsigned long long speid, addr64 argp, addr64 envp)
 		
 		if( btLikely( received_message == Spu_Mailbox_Event_Task ))
 		{
+#ifdef DEBUG_LIBSPE2_SPU_TASK
 			printf("SPU: received Spu_Mailbox_Event_Task\n");
-		
+#endif //DEBUG_LIBSPE2_SPU_TASK
+
 			// refresh the status
 			cellDmaGet(&status, argp.ull, sizeof(btSpuStatus), DMA_TAG(3), 0, 0);
 			cellDmaWaitTagStatusAll(DMA_MASK(3));
@@ -92,14 +96,20 @@ int main(unsigned long long speid, addr64 argp, addr64 envp)
 			
 			cellDmaGet(&taskDesc, status.m_taskDesc.p, sizeof(SpuGatherAndProcessPairsTaskDesc), DMA_TAG(3), 0, 0);
 			cellDmaWaitTagStatusAll(DMA_MASK(3));
-		
+#ifdef DEBUG_LIBSPE2_SPU_TASK		
 			printf("SPU:processCollisionTask\n");	
+#endif //DEBUG_LIBSPE2_SPU_TASK
 			processCollisionTask((void*)&taskDesc, taskDesc.m_lsMemory);
+			
+#ifdef DEBUG_LIBSPE2_SPU_TASK
 			printf("SPU:finished processCollisionTask\n");
+#endif //DEBUG_LIBSPE2_SPU_TASK
 		}
 		else
 		{
+#ifdef DEBUG_LIBSPE2_SPU_TASK
 			printf("SPU: received ShutDown\n");
+#endif //DEBUG_LIBSPE2_SPU_TASK
 			if( btLikely( received_message == Spu_Mailbox_Event_Shutdown ) )
 			{
 				shutdown = true;
@@ -117,6 +127,7 @@ int main(unsigned long long speid, addr64 argp, addr64 envp)
 				
 		
   	}
+
 	printf("SPU: shutdown\n");
   	return 0;
 }
diff --git a/Extras/BulletMultiThreaded/SpuSampleTaskProcess.h b/Extras/BulletMultiThreaded/SpuSampleTaskProcess.h
index 24f380713..473f80489 100644
--- a/Extras/BulletMultiThreaded/SpuSampleTaskProcess.h
+++ b/Extras/BulletMultiThreaded/SpuSampleTaskProcess.h
@@ -93,6 +93,8 @@ public:
 void * SamplelsMemoryFunc();
 void SampleThreadFunc(void* userPtr,void* lsMemory);
 
+//#define DEBUG_LIBSPE2_MAINLOOP
+
 int main(unsigned long long speid, addr64 argp, addr64 envp)
 {
 	printf("SPU is up \n");
@@ -125,7 +127,9 @@ int main(unsigned long long speid, addr64 argp, addr64 envp)
 			break; 
 		case Spu_Mailbox_Event_Task:
 			// refresh the status
+#ifdef DEBUG_LIBSPE2_MAINLOOP
 			printf("SPU recieved Task \n");
+#endif //DEBUG_LIBSPE2_MAINLOOP
 			cellDmaGet(&status, argp.ull, sizeof(btSpuStatus), DMA_TAG(3), 0, 0);
 			cellDmaWaitTagStatusAll(DMA_MASK(3));