diff --git a/zsnes/src/gui/guimouse.inc b/zsnes/src/gui/guimouse.inc
index aa60afae..264e329c 100644
--- a/zsnes/src/gui/guimouse.inc
+++ b/zsnes/src/gui/guimouse.inc
@@ -2665,9 +2665,12 @@ DisplayGUIVideoClick:
   add eax,100
   mov [GUIHoldXlimR],eax
 .nomovebar
-
 .notntsctab
+EXTSYm NTSCFilterInit
   xor al,al
+  pushad
+  call NTSCFilterInit
+  popad
   ret
 
 SECTION .bss
diff --git a/zsnes/src/video/procvidc.c b/zsnes/src/video/procvidc.c
index b53acfe1..5323e124 100644
--- a/zsnes/src/video/procvidc.c
+++ b/zsnes/src/video/procvidc.c
@@ -90,13 +90,13 @@ extern unsigned char NTSCBlend,NTSCHue,NTSCSat,NTSCCont,NTSCBright,NTSCSharp,NTS
 void NTSCFilterInit()
 {
    // Set GUI options
-   ntsc_setup.merge_fields = NTSCBlend;
-   ntsc_setup.hue = NTSCHue / 100;
-   ntsc_setup.saturation = NTSCSat / 100;
-   ntsc_setup.contrast = NTSCCont / 100;
-   ntsc_setup.brightness = NTSCBright / 100;
-   ntsc_setup.brightness = NTSCSharp / 100;
-   ntsc_setup.hue_warping = NTSCWarp / 100;
+   ntsc_setup.merge_fields = (float) NTSCBlend;
+   ntsc_setup.hue = (float) NTSCHue / 100;
+   ntsc_setup.saturation = (float) NTSCSat / 100;
+   ntsc_setup.contrast = (float) NTSCCont / 100;
+   ntsc_setup.brightness = (float) NTSCBright / 100;
+   ntsc_setup.sharpness = (float) NTSCSharp / 100;
+   ntsc_setup.hue_warping = (float) NTSCWarp / 100;
    snes_ntsc_init(&ntsc_snes, &ntsc_setup);
 }