diff --git a/bsnes/target-bsnes/program/game.cpp b/bsnes/target-bsnes/program/game.cpp
index 1790fff9..a3d86b54 100644
--- a/bsnes/target-bsnes/program/game.cpp
+++ b/bsnes/target-bsnes/program/game.cpp
@@ -294,6 +294,13 @@ auto Program::reset() -> void {
 
 auto Program::unload() -> void {
   if(!emulator->loaded()) return;
+  //todo: video.clear() is not working on macOS/OpenGL 3.2
+  if(auto [output, length] = video.acquire(1, 1); output) {
+    *output = 0;
+    video.release();
+    video.output();
+  }
+  audio.clear();
   rewindReset();  //free up memory that is no longer needed
   movieStop();  //in case a movie is currently being played or recorded
   cheatEditor.saveCheats();
diff --git a/hiro/cocoa/action/menu-radio-item.cpp b/hiro/cocoa/action/menu-radio-item.cpp
index a1fa7735..424c6fc8 100755
--- a/hiro/cocoa/action/menu-radio-item.cpp
+++ b/hiro/cocoa/action/menu-radio-item.cpp
@@ -7,7 +7,9 @@
     menuRadioItem = &menuRadioItemReference;
 
     [self setTarget:self];
-    [self setOnStateImage:[NSImage imageNamed:@"NSMenuRadio"]];
+  //todo: the default image is a check mark, which is not indicative of radio states.
+  //however, NSMenuRadio does not respect macOS' dark theme, and is barely visible.
+  //[self setOnStateImage:[NSImage imageNamed:@"NSMenuRadio"]];
   }
   return self;
 }
diff --git a/hiro/cocoa/utility.cpp b/hiro/cocoa/utility.cpp
index 3bd0e4b1..9d696239 100755
--- a/hiro/cocoa/utility.cpp
+++ b/hiro/cocoa/utility.cpp
@@ -3,9 +3,9 @@ auto NSMakeColor(const hiro::Color& color) -> NSColor* {
 }
 
 auto NSMakeCursor(const hiro::MouseCursor& mouseCursor) -> NSCursor* {
-  if(mouseCursor == MouseCursor::Hand) return [NSCursor pointingHandCursor];
-  if(mouseCursor == MouseCursor::HorizontalResize) return [NSCursor resizeLeftRightCursor];
-  if(mouseCursor == MouseCursor::VerticalResize) return [NSCursor resizeUpDownCursor];
+  if(mouseCursor == hiro::MouseCursor::Hand) return [NSCursor pointingHandCursor];
+  if(mouseCursor == hiro::MouseCursor::HorizontalResize) return [NSCursor resizeLeftRightCursor];
+  if(mouseCursor == hiro::MouseCursor::VerticalResize) return [NSCursor resizeUpDownCursor];
   return nil;
 }
 
diff --git a/hiro/cocoa/widget/canvas.cpp b/hiro/cocoa/widget/canvas.cpp
index 7d067173..3a8a74f4 100755
--- a/hiro/cocoa/widget/canvas.cpp
+++ b/hiro/cocoa/widget/canvas.cpp
@@ -16,7 +16,7 @@
 }
 
 -(void) resetCursorRects {
-  if(auto mouseCursor = NSMakeCursor(label->mouseCursor())) {
+  if(auto mouseCursor = NSMakeCursor(canvas->mouseCursor())) {
     [self addCursorRect:self.bounds cursor:mouseCursor];
   }
 }
diff --git a/hiro/cocoa/widget/label.cpp b/hiro/cocoa/widget/label.cpp
index c055e2c0..6fbe7075 100755
--- a/hiro/cocoa/widget/label.cpp
+++ b/hiro/cocoa/widget/label.cpp
@@ -16,13 +16,10 @@
 }
 
 -(void) drawRect:(NSRect)dirtyRect {
-  auto geometry = label->geometry();
-  NSRect rect = {{geometry.x(), geometry.y()}, {geometry.width(), geometry.height()}};
-
   if(auto backgroundColor = label->backgroundColor()) {
     NSColor* color = NSMakeColor(backgroundColor);
     [color setFill];
-    NSRectFill(rect);
+    NSRectFill(dirtyRect);
   }
 
   NSFont* font = hiro::pFont::create(label->font(true));
@@ -43,6 +40,8 @@
   auto alignment = label->alignment();
   if(!alignment) alignment = {0.0, 0.5};
 
+  auto geometry = label->geometry();
+  NSRect rect = {{geometry.x(), geometry.y()}, {geometry.width(), geometry.height()}};
   rect.origin.x = max(0, (geometry.width() - size.width()) * alignment.horizontal());
   rect.origin.y = max(0, (geometry.height() - size.height()) * alignment.vertical());
   rect.size.width = min(geometry.width(), size.width());
@@ -128,8 +127,8 @@ auto pLabel::construct() -> void {
     pWidget::construct();
 
     setAlignment(state().alignment);
-    setBackgroundColor(state().backgroundColor());
-    setForegroundColor(state().foregroundColor());
+    setBackgroundColor(state().backgroundColor);
+    setForegroundColor(state().foregroundColor);
     setText(state().text);
   }
 }
diff --git a/hiro/cocoa/widget/viewport.cpp b/hiro/cocoa/widget/viewport.cpp
index 3edc1dda..51cfe599 100755
--- a/hiro/cocoa/widget/viewport.cpp
+++ b/hiro/cocoa/widget/viewport.cpp
@@ -10,7 +10,7 @@
 }
 
 -(void) resetCursorRects {
-  if(auto mouseCursor = NSMakeCursor(label->mouseCursor())) {
+  if(auto mouseCursor = NSMakeCursor(viewport->mouseCursor())) {
     [self addCursorRect:self.bounds cursor:mouseCursor];
   }
 }
diff --git a/nall/run.hpp b/nall/run.hpp
index 2c11a8bf..14f92ec4 100755
--- a/nall/run.hpp
+++ b/nall/run.hpp
@@ -98,7 +98,11 @@ template<typename... P> inline auto invoke(const string& name, P&&... p) -> void
     *argp++ = nullptr;
 
     if(execvp(name, (char* const*)argv) < 0) {
+      #if defined(PLATFORM_MACOS)
+      execlp("open", "open", (const char*)name, nullptr);
+      #else
       execlp("xdg-open", "xdg-open", (const char*)name, nullptr);
+      #endif
     }
     exit(0);
   }