diff --git a/src/cpu/callback.cpp b/src/cpu/callback.cpp
index ce79268f..fcdd049a 100644
--- a/src/cpu/callback.cpp
+++ b/src/cpu/callback.cpp
@@ -52,8 +52,8 @@ Bitu CALLBACK_Allocate(void) {
 
 void CALLBACK_Idle(void) {
 /* this makes the cpu execute instructions to handle irq's and then come back */
-	bool oldintf=flags.intf;
-	flags.intf=true;
+	Bitu oldIF=GETFLAG(IF);
+	SETFLAGBIT(IF,true);
 	Bit16u oldcs=SegValue(cs);
 	Bit32u oldeip=reg_eip;
 	SegSet16(cs,CB_SEG);
@@ -61,7 +61,7 @@ void CALLBACK_Idle(void) {
 	DOSBOX_RunMachine();
 	reg_eip=oldeip;
 	SegSet16(cs,oldcs);
-	flags.intf=oldintf;
+	SETFLAGBIT(IF,oldIF);
 	if (CPU_CycleLeft<300) CPU_CycleLeft=1;
 	else CPU_CycleLeft-=300;
 }
@@ -174,6 +174,8 @@ void CALLBACK_Init(Section* sec) {
 	for (i=0;i<0x40;i++) {
 		real_writed(0,i*4,CALLBACK_RealPointer(call_default));
 	}
+	real_writed(0,0x67*4,CALLBACK_RealPointer(call_default));
+
 }