diff --git a/source/Frame.cpp b/source/Frame.cpp
index 40fdd55c..f33ed21d 100644
--- a/source/Frame.cpp
+++ b/source/Frame.cpp
@@ -2297,7 +2297,7 @@ void ResetMachineState ()
   HD_Reset();
   g_bFullSpeed = 0;	// Might've hit reset in middle of InternalCpuExecute() - so beep may get (partially) muted
 
-  MemReset();	// calls CpuInitialize()
+  MemReset();	// calls CpuInitialize(), CNoSlotClock.Reset()
   PravetsReset();
   if (g_CardMgr.QuerySlot(SLOT6) == CT_Disk2)
 	dynamic_cast<Disk2InterfaceCard&>(g_CardMgr.GetRef(SLOT6)).Boot();
diff --git a/source/Memory.cpp b/source/Memory.cpp
index 4c513f64..48b71c28 100644
--- a/source/Memory.cpp
+++ b/source/Memory.cpp
@@ -1801,7 +1801,7 @@ inline DWORD getRandomTime()
 //===========================================================================
 
 // Called by:
-// . MemInitialize()
+// . MemInitialize()		eg. on AppleWin start & restart (eg. h/w config changes)
 // . ResetMachineState()	eg. Power-cycle ('Apple-Go' button)
 // . Snapshot_LoadState_v2()
 void MemReset()
@@ -1956,6 +1956,8 @@ void MemReset()
 	//Sets Caps Lock = false (Pravets 8A/C only)
 
 	z80_reset();	// NB. Also called above in CpuInitialize()
+
+	g_NoSlotClock.Reset();	// NB. Power-cycle, but not RESET signal
 }
 
 //===========================================================================