diff --git a/DBKKernel/IOPLDispatcher.c b/DBKKernel/IOPLDispatcher.c
index 7ed8cde6..9135f21f 100644
--- a/DBKKernel/IOPLDispatcher.c
+++ b/DBKKernel/IOPLDispatcher.c
@@ -159,7 +159,7 @@ NTSTATUS DispatchIoctl(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
 	else
 		IoControlCode=Irp->Flags;
 		
-	DbgPrint("DispatchIoctl. IoControlCode=%x\n", IoControlCode);
+	//DbgPrint("DispatchIoctl. IoControlCode=%x\n", IoControlCode);
 
 	
 	
@@ -520,7 +520,7 @@ NTSTATUS DispatchIoctl(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
 					if (ntStatus==STATUS_SUCCESS)
 					{
                         offset=(UINT_PTR)(pinp->startaddress)-(UINT_PTR)viewBase.QuadPart;
-						RtlCopyMemory(&memoryview[offset],&pinp2[8],toread);
+						RtlCopyMemory(&memoryview[offset],&pinp2[16],toread);
 
 						ZwUnmapViewOfSection(
 							NtCurrentProcess(), //processhandle
@@ -1373,7 +1373,7 @@ NTSTATUS DispatchIoctl(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
 
 				
 				DbgPrint("IOCTL_CE_ULTIMAP:\n");
-				DbgPrint("ultimap(%llx, %llx, %d):\n", inp->targetCR3, inp->dbgctl, inp->dsareasize);
+				DbgPrint("ultimap(%I64x, %I64x, %d):\n", (UINT64)inp->targetCR3, (UINT64)inp->dbgctl, inp->dsareasize);
 
 				if (inp->savetofile)
 					DbgPrint("filename=%S\n", &inp->filename[0]);
diff --git a/DBKKernel/interruptHook.c b/DBKKernel/interruptHook.c
index ddbf21c8..5f1c2669 100644
--- a/DBKKernel/interruptHook.c
+++ b/DBKKernel/interruptHook.c
@@ -189,7 +189,7 @@ int inthook_HookInterrupt(unsigned char intnr, int newCS, ULONG_PTR newEIP, PJUM
 
 		InterruptHook[intnr].dbvmInterruptEmulation=0;
 
-		DbgPrint("int %d will now go to %x:%x\n",intnr, newCS, newEIP);
+		DbgPrint("int %d will now go to %x:%p\n",intnr, newCS, newEIP);
 
 	}
 
diff --git a/DBKKernel/ultimap.c b/DBKKernel/ultimap.c
index 482252d0..abfdc945 100644
--- a/DBKKernel/ultimap.c
+++ b/DBKKernel/ultimap.c
@@ -15,9 +15,9 @@ JUMPBACK perfmonJumpBackLocation;
 
 
 #ifdef AMD64
-PAPIC APIC_BASE=(PAPIC)0xfffffffffffe0000;
+volatile PAPIC APIC_BASE=(PAPIC)0xfffffffffffe0000;
 #else
-PAPIC APIC_BASE=(PAPIC)0xfffe0000;
+volatile PAPIC APIC_BASE=(PAPIC)0xfffe0000;
 #endif
 
 BOOL SaveToFile; //If set it will save the results to a file instead of sending a message to the usermode app that is watching the data
@@ -156,6 +156,9 @@ int perfmon_interrupt_centry(void)
 	int causedbyme=(DS_AREA[cpunr()]->BTS_IndexBaseAddress>=DS_AREA[cpunr()]->BTS_InterruptThresholdAddress);
 	UINT_PTR blocksize;
 
+	DbgPrint("perfmon_interrupt_centry\n", cpunr());
+
+
 	if (causedbyme)
 	{
 		//undo the system flags that got set by this interrupt
@@ -401,12 +404,13 @@ Call this for each processor
 	DS_AREA_SIZE=params->DS_AREA_SIZE;
 	
 
-	DbgPrint("ultimap(%llx, %llx, %d)", params->cr3, params->dbgctl_msr, params->DS_AREA_SIZE);
+	DbgPrint("ultimap(%I64x, %I64x, %d)", (UINT64)params->cr3, (UINT64)params->dbgctl_msr, params->DS_AREA_SIZE);
 	DS_AREA[cpunr()]=NULL;
 
 	if (params->DS_AREA_SIZE)
 	{
 		DS_AREA[cpunr()]=ExAllocatePool(NonPagedPool, params->DS_AREA_SIZE);
+		RtlZeroMemory(DS_AREA[cpunr()],  params->DS_AREA_SIZE);
 
 		DbgPrint("DS_AREA[%d]=%p", cpunr(), DS_AREA[cpunr()]);
 
@@ -432,8 +436,14 @@ Call this for each processor
 
 		int perfmonIVT=(APIC_BASE->LVT_Performance_Monitor.a) & 0xff;
 
+		DbgPrint("APIC_BASE->LVT_Performance_Monitor.a=%x\n", APIC_BASE->LVT_Performance_Monitor.a);
+		if (perfmonIVT==0) //if not setup at all then set it up now
+			perfmonIVT=0xfe; 
+
 		APIC_BASE->LVT_Performance_Monitor.a=perfmonIVT; //clear mask flag if it was set
 
+		DbgPrint("APIC_BASE->LVT_Performance_Monitor.a=%x\n", APIC_BASE->LVT_Performance_Monitor.a);
+
 	
 
 		if (inthook_HookInterrupt((unsigned char)perfmonIVT, getCS(), (ULONG_PTR)perfmon_interrupt, &perfmonJumpBackLocation))
@@ -494,6 +504,10 @@ NTSTATUS ultimap(UINT64 cr3, UINT64 dbgctl_msr, int DS_AREA_SIZE, BOOL savetofil
 	DataBlock=ExAllocatePool(NonPagedPool, sizeof(_DataBlock) * MaxDataBlocks);
 	DataReadyPointerList=ExAllocatePool(NonPagedPool, sizeof(PVOID) * MaxDataBlocks);
 
+	RtlZeroMemory(DataBlock, sizeof(_DataBlock) * MaxDataBlocks);
+	RtlZeroMemory(DataReadyPointerList, sizeof(PVOID) * MaxDataBlocks);
+
+
 	if ((DataBlock) && (DataReadyPointerList))
 	{
 
diff --git a/DBKKernel/ultimap.h b/DBKKernel/ultimap.h
index 8185f810..3a9fa528 100644
--- a/DBKKernel/ultimap.h
+++ b/DBKKernel/ultimap.h
@@ -88,7 +88,7 @@ typedef struct {
   DWORD d;
 } UINT128;
 
-typedef struct {
+typedef volatile struct {
 	UINT128 Reserved1;
 	UINT128 Reserved2;
 	UINT128 LocalAPIC_ID;