diff --git a/src/driver.h b/src/driver.h
index b3f029b..9ce4796 100644
--- a/src/driver.h
+++ b/src/driver.h
@@ -35,7 +35,6 @@ void FCEU_printf(char *format, ...);
 
 /* Video interface */
 void FCEUD_SetPalette(uint8 index, uint8 r, uint8 g, uint8 b);
-void FCEUD_GetPalette(uint8 i, uint8 *r, uint8 *g, uint8 *b);
 
 /* Displays an error.  Can block or not. */
 void FCEUD_PrintError(char *s);
@@ -51,14 +50,6 @@ int FCEUI_NetplayStart(int nlocal, int divisor);
 /* Call when network play needs to stop. */
 void FCEUI_NetplayStop(void);
 
-/* Note:  YOU MUST NOT CALL ANY FCEUI_* FUNCTIONS WHILE IN FCEUD_SendData() or
-   FCEUD_RecvData().
-*/
-
-/* Return 0 on failure, 1 on success. */
-int FCEUD_SendData(void *data, uint32 len);
-int FCEUD_RecvData(void *data, uint32 len);
-
 /* Display text received over the network. */
 void FCEUD_NetplayText(uint8 *text);
 
diff --git a/src/drivers/libretro/libretro.c b/src/drivers/libretro/libretro.c
index 3f41833..56b2bb2 100644
--- a/src/drivers/libretro/libretro.c
+++ b/src/drivers/libretro/libretro.c
@@ -202,11 +202,6 @@ const char * GetKeyboard(void)
    return "";
 }
 
-int FCEUD_SendData(void *data, uint32 len)
-{
-   return 1;
-}
-
 #define BUILD_PIXEL_RGB565(R,G,B) (((int) ((R)&0x1f) << RED_SHIFT) | ((int) ((G)&0x3f) << GREEN_SHIFT) | ((int) ((B)&0x1f) << BLUE_SHIFT))
 
 #if defined (PSP)
@@ -266,15 +261,6 @@ void FCEUD_SetPalette(uint8_t index, uint8_t r, uint8_t g, uint8_t b)
 #endif
 }
 
-void FCEUD_GetPalette(unsigned char i, unsigned char *r, unsigned char *g, unsigned char *b)
-{
-}
-
-bool FCEUD_ShouldDrawInputAids (void)
-{
-   return 1;
-}
-
 static struct retro_log_callback log_cb;
 
 static void default_logger(enum retro_log_level level, const char *fmt, ...) {}
@@ -304,9 +290,6 @@ void FCEUD_SoundToggle (void)
    FCEUI_SetSoundVolume(sndvolume);
 }
 
-void FCEUD_VideoChanged (void)
-{ }
-
 FILE *FCEUD_UTF8fopen(const char *n, const char *m)
 {
    if (n)
diff --git a/src/ppu.c b/src/ppu.c
index e9aec63..0d8ee53 100644
--- a/src/ppu.c
+++ b/src/ppu.c
@@ -1241,7 +1241,7 @@ int FCEUPPU_Loop(int skip) {
 
 			for (scanline = 0; scanline < totalscanlines; ) {	/* scanline is incremented in  DoLine.  Evil. :/ */
 				deempcnt[deemp]++;
-				if ((PPUViewer) && (scanline == PPUViewScanline)) UpdatePPUView(1);
+				/* if ((PPUViewer) && (scanline == PPUViewScanline)) UpdatePPUView(1); */
 				DoLine();
 				if (scanline < normal_scanlines || scanline == totalscanlines)
 					overclocked = 0;