diff --git a/MacGLide/OpenGLide/Glide.cpp b/MacGLide/OpenGLide/Glide.cpp
index 59482c5..615b938 100644
--- a/MacGLide/OpenGLide/Glide.cpp
+++ b/MacGLide/OpenGLide/Glide.cpp
@@ -28,7 +28,7 @@
 ///////////////////////////////////////////////////////////////////////////////////////
 ///////////////////////////////////////////////////////////////////////////////////////
 
-const char* OpenGLideVersion = "0.13a1";
+const char* OpenGLideVersion = "0.13a2";
 
 ///////////////////////////////////////////////////////////////////////////////////////
 ///////////////////////////////////////////////////////////////////////////////////////
@@ -88,6 +88,12 @@ OSErr InitMainVariables(void)
 		{
 			UserConfig.GlideTextureUnits = 3;
 		}
+		// Detect vector unit (Altivec, SSE, etc.)
+		UserConfig.VectorUnitType = GetVectorUnitType();
+		if (UserConfig.VectorUnitType > OpenGLideVectorUnitType_None)
+		{
+			GlideMsg("Using %s vector unit\n", OpenGLideVectorUnitNames[UserConfig.VectorUnitType - 1]);
+		}
 		// Apply mandatory application dependent settings/patches
 		GlideApplication::Type application = s_GlideApplication.GetType();
 		switch (application)
diff --git a/MacGLide/OpenGLide/Glide.h b/MacGLide/OpenGLide/Glide.h
index d7fe496..047a265 100644
--- a/MacGLide/OpenGLide/Glide.h
+++ b/MacGLide/OpenGLide/Glide.h
@@ -26,18 +26,21 @@ extern const char* OpenGLideVersion;
 // Product name of the library
 extern const char* OpenGLideProductName;
  
-// extern double ClockFreq;
 extern GlideStruct Glide; // Glide Internal
 extern OpenGLStruct OpenGL; // OpenGL equivalents
 extern GlideSettingsImpl UserConfig;
 extern GlideSettingsImpl InternalConfig;
 
+// Return the vector unit type (None, Altivec, SSE, etc.)
+extern OpenGLideVectorUnitType GetVectorUnitType();
+extern const char* OpenGLideVectorUnitNames[];
+
 // GLide
 OSErr InitMainVariables();
-bool InitWindow( FxU32 hwnd );
-void InitOpenGL( void );
-bool ClearAndGenerateLogFile( void );
-void CloseLogFile( void );
+bool InitWindow(FxU32 hwnd);
+void InitOpenGL(void);
+bool ClearAndGenerateLogFile(void);
+void CloseLogFile(void);
 
 // Memory management
 void* AllocFrameBuffer(long buffersize, long buffertypesize);
diff --git a/MacGLide/OpenGLide/GlideSettings.cpp b/MacGLide/OpenGLide/GlideSettings.cpp
index 8f37501..0362a4c 100644
--- a/MacGLide/OpenGLide/GlideSettings.cpp
+++ b/MacGLide/OpenGLide/GlideSettings.cpp
@@ -170,7 +170,7 @@ void GlideSettings::defaults()
 	GapFixDepthFactor = 3.3f;
 	
 	GenerateSubTextures            = 0;
-	Mipmapping                  = true;
+	Mipmapping                     = true;
 	AnisotropylLevel               = 16;
 	IgnorePaletteChange            = false;
 	ARB_multitexture               = true;
@@ -207,6 +207,7 @@ void GlideSettings::defaults()
 	ShamelessPlug                  = false;
 	UseApplicationSpecificSettings = false;
 	AutoEnableGameSpecificSettings = true;
+	VectorUnitType                 = OpenGLideVectorUnitType_None;
 }
 
 GlideSettings::IOErr GlideSettings::read_settings()
diff --git a/MacGLide/OpenGLide/GlideSettings.h b/MacGLide/OpenGLide/GlideSettings.h
index cbdf1e8..943d805 100644
--- a/MacGLide/OpenGLide/GlideSettings.h
+++ b/MacGLide/OpenGLide/GlideSettings.h
@@ -59,6 +59,12 @@ enum OpenGLideGapFixFlags
 	OpenGLideGapFixFlag_VertexLengthSecondRadius = 0x80
 };
 
+enum OpenGLideVectorUnitType
+{
+	OpenGLideVectorUnitType_None = 0x00,
+	OpenGLideVectorUnitType_Altivec = 0x01
+};
+
 struct ConfigStruct
 {
 	OpenGLideDisplayMode DisplayMode;
@@ -114,6 +120,7 @@ struct ConfigStruct
 	bool ShamelessPlug;
 	bool UseApplicationSpecificSettings;
 	bool AutoEnableGameSpecificSettings;
+	OpenGLideVectorUnitType VectorUnitType;
 };
 
 class GlideSettings : public ConfigStruct