diff --git a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/Mapper069.cs b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/Mapper069.cs
index cc5a62c5fc..3a076f3592 100644
--- a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/Mapper069.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/Mapper069.cs
@@ -179,8 +179,12 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
 							irq_countdown = value.Bit(7);
 							irq_enabled = value.Bit(0);
 							//if (value != 0) NES.LogLine("irq set to {0},{1} with value {2:x2}", irq_countdown, irq_enabled, value);
-							if (!irq_enabled) irq_asserted = false;
+
+							//always ACK for reg 0xD and no other reg
+							//http://forums.nesdev.com/viewtopic.php?f=2&t=12436&start=15
+							irq_asserted = false;
 							SyncIrq();
+
 							break;
 						case 0xE:
 							irq_counter &= 0xFF00;
diff --git a/output/dll/libquicknes.dll b/output/dll/libquicknes.dll
index 23e523e8c8..7f05aa3181 100644
Binary files a/output/dll/libquicknes.dll and b/output/dll/libquicknes.dll differ
diff --git a/quicknes/nes_emu/Mapper_Fme7.cpp b/quicknes/nes_emu/Mapper_Fme7.cpp
index 47e54e892e..97a08983a6 100644
--- a/quicknes/nes_emu/Mapper_Fme7.cpp
+++ b/quicknes/nes_emu/Mapper_Fme7.cpp
@@ -160,8 +160,8 @@ void Mapper_Fme7::write_irq( nes_time_t time, int index, int data )
 	{
 	case 0x0D:
 		irq_mode = data;
-		if ( (irq_mode & 0x81) != 0x81 )
-			irq_pending = false;
+		irq_pending = false;
+		irq_changed();
 		break;
 
 	case 0x0E:
@@ -173,8 +173,6 @@ void Mapper_Fme7::write_irq( nes_time_t time, int index, int data )
 		break;
 	}
 	
-	if ( (irq_mode & 0x81) == 0x81 )
-		irq_changed();
 }
 
 void Mapper_Fme7::write_register( int index, int data )