diff --git a/src/graphics/Renderer.cpp b/src/graphics/Renderer.cpp
index a046ac4d5..00a929a2d 100644
--- a/src/graphics/Renderer.cpp
+++ b/src/graphics/Renderer.cpp
@@ -2590,67 +2590,67 @@ Renderer::Renderer(Graphics * g, Simulation * sim):
 		"Alternative Velocity Display",
 		{ RENDER_EFFE, RENDER_BASC },
 		{ DISPLAY_AIRC },
-		{ }
+		0
 	});
 	renderModePresets.push_back({
 		"Velocity Display",
 		{ RENDER_EFFE, RENDER_BASC },
 		{ DISPLAY_AIRV },
-		{ }
+		0
 	});
 	renderModePresets.push_back({
 		"Pressure Display",
 		{ RENDER_EFFE, RENDER_BASC },
 		{ DISPLAY_AIRP },
-		{ }
+		0
 	});
 	renderModePresets.push_back({
 		"Persistent Display",
 		{ RENDER_EFFE, RENDER_BASC },
 		{ DISPLAY_PERS },
-		{ }
+		0
 	});
 	renderModePresets.push_back({
 		"Fire Display",
 		{ RENDER_FIRE, RENDER_SPRK, RENDER_EFFE, RENDER_BASC },
 		{ },
-		{ }
+		0
 	});
 	renderModePresets.push_back({
 		"Blob Display",
 		{ RENDER_FIRE, RENDER_SPRK, RENDER_EFFE, RENDER_BLOB },
 		{ },
-		{ }
+		0
 	});
 	renderModePresets.push_back({
 		"Heat Display",
 		{ RENDER_BASC },
 		{ DISPLAY_AIRH },
-		{ COLOUR_HEAT }
+		COLOUR_HEAT
 	});
 	renderModePresets.push_back({
 		"Fancy Display",
 		{ RENDER_FIRE, RENDER_SPRK, RENDER_GLOW, RENDER_BLUR, RENDER_EFFE, RENDER_BASC },
 		{ DISPLAY_WARP },
-		{ }
+		0
 	});
 	renderModePresets.push_back({
 		"Nothing Display",
 		{ RENDER_BASC },
 		{ },
-		{ }
+		0
 	});
 	renderModePresets.push_back({
 		"Heat Gradient Display",
 		{ RENDER_BASC },
 		{ },
-		{ COLOUR_GRAD }
+		COLOUR_GRAD
 	});
 	renderModePresets.push_back({
 		"Life Gradient Display",
 		{ RENDER_BASC },
 		{ },
-		{ COLOUR_LIFE }
+		COLOUR_LIFE
 	});
 
 	//Prepare the graphics cache
diff --git a/src/simulation/CoordStack.h b/src/simulation/CoordStack.h
index 45e671542..be0afed59 100644
--- a/src/simulation/CoordStack.h
+++ b/src/simulation/CoordStack.h
@@ -46,7 +46,7 @@ public:
 	}
 	~CoordStack()
 	{
-		delete stack;
+		delete[] stack;
 	}
 	void push(int x, int y)
 	{