diff --git a/src/drivers/sdl/config.cpp b/src/drivers/sdl/config.cpp
index d08d23d9..58e9fac2 100644
--- a/src/drivers/sdl/config.cpp
+++ b/src/drivers/sdl/config.cpp
@@ -299,6 +299,7 @@ InitConfig()
 	config->addOption(prefix + "SelectState7", SDLK_7);
 	config->addOption(prefix + "SelectState8", SDLK_8);
 	config->addOption(prefix + "SelectState9", SDLK_9);
+	config->addOption(prefix + "MovieToggleFrameDisplay", SDLK_BACKSPACE);
     
 
     // All mouse devices
diff --git a/src/drivers/sdl/input.cpp b/src/drivers/sdl/input.cpp
index edc8c9a0..1fdfbf03 100644
--- a/src/drivers/sdl/input.cpp
+++ b/src/drivers/sdl/input.cpp
@@ -167,6 +167,9 @@ int stateKey[10];
 int movieToggleFrameDisplayKey;
 int lagCounterDisplayKey;
 
+// this function loads the sdl hotkeys from the config file into the
+// global scope.  this elimates the need for accessing the config file
+// on every cycle of keyboardinput()
 void setHotKeys()
 {
 	g_config->getOption("SDL.Hotkeys.CheatMenu", &cheatMenuKey);