diff --git a/src/FileBrowser.cpp b/src/FileBrowser.cpp
index 52402b4..aec7731 100644
--- a/src/FileBrowser.cpp
+++ b/src/FileBrowser.cpp
@@ -375,11 +375,7 @@ bool FileBrowser::BrowsableList::CheckBrowseNavigation()
 	}
 
 	// check for keys a-z and 0-9
-	char searchChar = 0;
-	if (inputMappings->BrowseLetter())
-		searchChar = inputMappings->getKeyboardLetter();
-	if (inputMappings->BrowseNumber())
-		searchChar = inputMappings->getKeyboardNumber();
+	char searchChar = inputMappings->getKeyboardNumLetter();
 	if (searchChar)
 	{
 		char temp[8];
@@ -833,12 +829,7 @@ void FileBrowser::Update()
 		dirty = inputMappings->CheckButtonsBrowseMode();
 
 	if (dirty)
-	{
-		//if (state == State_Folders)
-			UpdateInputFolders();
-		//else
-		//	UpdateInputDiskCaddy();
-	}
+		UpdateInputFolders();
 
 	UpdateCurrentHighlight();
 }
@@ -1049,15 +1040,15 @@ void FileBrowser::UpdateInputFolders()
 			}
 			else
 			{
-				// check for number keys for ROM and Drive Number changes
-				if (inputMappings->BrowseFunction()
-					&& inputMappings->getKeyboardFunction() >= 1
-					&& inputMappings->getKeyboardFunction() <= 11 )
+				// check Fkeys for ROM and Drive Number changes
+				unsigned ROMOrDevice = inputMappings->getROMOrDevice();
+				if ( inputMappings->BrowseFunction()
+					&& ROMOrDevice >= 1
+					&& ROMOrDevice <= 11 )
 				{
-					SelectROMOrDevice(inputMappings->getKeyboardFunction());
+					SelectROMOrDevice(ROMOrDevice);
 				}
 
-
 				dirty = folder.CheckBrowseNavigation();
 			}
 
diff --git a/src/InputMappings.cpp b/src/InputMappings.cpp
index 3f2a1e0..4cee775 100644
--- a/src/InputMappings.cpp
+++ b/src/InputMappings.cpp
@@ -44,18 +44,14 @@ InputMappings::InputMappings()
 bool InputMappings::CheckButtonsBrowseMode()
 {
 	buttonFlags = 0;
-	//if (IEC_Bus::GetInputButtonPressed(0))
-	//	SetButtonFlag(ENTER_FLAG);
-	//else
-		if (IEC_Bus::GetInputButtonRepeating(1))
+	if (IEC_Bus::GetInputButtonRepeating(1))
 		SetButtonFlag(UP_FLAG);
 	else if (IEC_Bus::GetInputButtonRepeating(2))
 		SetButtonFlag(DOWN_FLAG);
 	else if (IEC_Bus::GetInputButtonPressed(3))
 		SetButtonFlag(BACK_FLAG);
-	//else if (IEC_Bus::GetInputButtonPressed(4))
-	//	SetButtonFlag(INSERT_FLAG);
 
+// edge detection
 	insertButtonPressed = !IEC_Bus::GetInputButtonReleased(4);
 	if (insertButtonPressedPrev && !insertButtonPressed)
 		SetButtonFlag(INSERT_FLAG);
@@ -152,6 +148,8 @@ bool InputMappings::CheckKeyboardBrowseMode()
 	Keyboard* keyboard = Keyboard::Instance();
 
 	keyboardFlags = 0;
+	inputROMOrDevice = 0;
+	keyboardNumLetter = 0;
 
 	if (keyboard->KeyHeld(KEY_DELETE) && keyboard->KeyLCtrlAlt() )
 		reboot_now();
@@ -206,26 +204,26 @@ bool InputMappings::CheckKeyboardBrowseMode()
 			{
 				if (keyboard->KeyHeld(index))
 				{
-					SetKeyboardFlag(NUMBER_FLAG);
-					keyboardNumber = index-KEY_1+'1';	// key 1 is ascii '1'
-					if (keyboardNumber > '9') keyboardNumber = '0';
+					SetKeyboardFlag(NUMLET_FLAG);
+					keyboardNumLetter = index-KEY_1+'1';	// key 1 is ascii '1'
+					if (keyboardNumLetter > '9') keyboardNumLetter = '0';
 				}
 			}
 			for (index = KEY_KP1; index <= KEY_KP0; ++index)
 			{
 				if (keyboard->KeyHeld(index))
 				{
-					SetKeyboardFlag(NUMBER_FLAG);
-					keyboardNumber = index-KEY_KP1+'1';	// key 1 is ascii '1'
-					if (keyboardNumber > '9') keyboardNumber = '0';
+					SetKeyboardFlag(NUMLET_FLAG);
+					keyboardNumLetter = index-KEY_KP1+'1';	// key 1 is ascii '1'
+					if (keyboardNumLetter > '9') keyboardNumLetter = '0';
 				}
 			}
 			for (index = KEY_A; index <= KEY_Z; ++index)
 			{
 				if (keyboard->KeyHeld(index))
 				{
-					SetKeyboardFlag(LETTER_FLAG);
-					keyboardLetter = index-KEY_A+'A';	// key A is ascii 'A'
+					SetKeyboardFlag(NUMLET_FLAG);
+					keyboardNumLetter = index-KEY_A+'A';	// key A is ascii 'A'
 				}
 			}
 			for (index = KEY_F1; index <= KEY_F12; ++index)	// F13 isnt contiguous
@@ -233,7 +231,7 @@ bool InputMappings::CheckKeyboardBrowseMode()
 				if (keyboard->KeyHeld(index))
 				{
 					SetKeyboardFlag(FUNCTION_FLAG);
-					keyboardFunction = index-KEY_F1+1;	// key F1 is 1
+					inputROMOrDevice = index-KEY_F1+1;	// key F1 is 1
 				}
 			}
 		}
diff --git a/src/InputMappings.h b/src/InputMappings.h
index 4f873fe..6dd4293 100644
--- a/src/InputMappings.h
+++ b/src/InputMappings.h
@@ -32,7 +32,8 @@
 #define SPACE_FLAG		(1 << 8)
 #define BACK_FLAG		(1 << 9)
 #define INSERT_FLAG		(1 << 10)
-#define NUMBER_FLAG		(1 << 11)
+
+#define NUMLET_FLAG		(1 << 11)
 
 #define PAGEDOWN_LCD_FLAG	(1 << 12)
 #define PAGEUP_LCD_FLAG		(1 << 13)
@@ -41,9 +42,10 @@
 #define AUTOLOAD_FLAG		(1 << 15)
 #define FAKERESET_FLAG		(1 << 16)
 #define WRITEPROTECT_FLAG	(1 << 17)
-#define LETTER_FLAG		(1 << 18)
+//#define SPARE_FLAG		(1 << 18)
 #define HOME_FLAG		(1 << 19)
 #define END_FLAG		(1 << 20)
+
 #define FUNCTION_FLAG		(1 << 21)
 // dont exceed 32!!
 
@@ -78,9 +80,8 @@ protected:
 	bool enterButtonPressedPrev;
 	bool enterButtonPressed;
 
-	unsigned keyboardNumber;
-	unsigned keyboardLetter;
-	unsigned keyboardFunction;
+	unsigned keyboardNumLetter;
+	unsigned inputROMOrDevice;
 
 	//inline void SetUartFlag(unsigned flag) { uartFlags |= flag;	}
 	//inline bool UartFlag(unsigned flag) { return (uartFlags & flag) != 0; }
@@ -178,17 +179,14 @@ public:
 
 	inline bool BrowseWriteProtect() { return KeyboardFlag(WRITEPROTECT_FLAG); }
 
-	inline bool BrowseNumber() { return KeyboardFlag(NUMBER_FLAG); }
-	inline bool BrowseLetter() { return KeyboardFlag(LETTER_FLAG); }
 	inline bool BrowseFunction() { return KeyboardFlag(FUNCTION_FLAG); }
 
 	inline bool BrowseHome() { return KeyboardFlag(HOME_FLAG); }
 
 	inline bool BrowseEnd() { return KeyboardFlag(END_FLAG); }
 
-	inline char getKeyboardNumber() { return keyboardNumber; }
-	inline char getKeyboardLetter() { return (char) keyboardLetter; }
-	inline unsigned getKeyboardFunction() { return (char) keyboardFunction; }
+	inline char getKeyboardNumLetter() { return keyboardNumLetter; }
+	inline unsigned getROMOrDevice() { return inputROMOrDevice; }
 
 	// Used by the 2 cores so need to be volatile
 	//volatile static unsigned directDiskSwapRequest;