diff --git a/src/gl/scene/gl_walls_draw.cpp b/src/gl/scene/gl_walls_draw.cpp
index aabec775e..b932691de 100644
--- a/src/gl/scene/gl_walls_draw.cpp
+++ b/src/gl/scene/gl_walls_draw.cpp
@@ -321,7 +321,13 @@ void GLWall::RenderMirrorSurface()
 	// For the sphere map effect we need a normal of the mirror surface,
 	Vector v(glseg.y2-glseg.y1, 0 ,-glseg.x2+glseg.x1);
 	v.Normalize();
-	glNormal3fv(&v[0]);
+
+	// we use texture coordinates and texture matrix to pass the normal stuff to the shader so that the default vertex buffer format can be used as is.
+	lolft.u = lorgt.u = uplft.u = uprgt.u = v.X();
+	lolft.v = lorgt.v = uplft.v = uprgt.v = v.Z();
+
+	gl_RenderState.EnableTextureMatrix(true);
+	gl_RenderState.mTextureMatrix.computeNormalMatrix(gl_RenderState.mViewMatrix);
 
 	// Use sphere mapping for this
 	gl_RenderState.SetEffect(EFF_SPHEREMAP);
@@ -338,6 +344,7 @@ void GLWall::RenderMirrorSurface()
 	flags &= ~GLWF_GLOW;
 	RenderWall(RWF_BLANK);
 
+	gl_RenderState.EnableTextureMatrix(false);
 	gl_RenderState.SetEffect(EFF_NONE);
 
 	// Restore the defaults for the translucent pass
diff --git a/src/win32/win32gliface.cpp b/src/win32/win32gliface.cpp
index 5623b7062..7b70e9172 100644
--- a/src/win32/win32gliface.cpp
+++ b/src/win32/win32gliface.cpp
@@ -1,5 +1,10 @@
 #include "gl/system/gl_system.h"
 
+#define DWORD WINDOWS_DWORD	
+#include <GL/wglew.h>
+#undef DWORD
+
+
 #include "win32iface.h"
 #include "win32gliface.h"
 //#include "gl/gl_intern.h"
@@ -22,6 +27,12 @@
 void gl_CalculateCPUSpeed();
 extern int NewWidth, NewHeight, NewBits, DisplayBits;
 
+// these get used before GLEW is initialized so we have to use separate pointers with different names
+PFNWGLCHOOSEPIXELFORMATARBPROC myWglChoosePixelFormatARB; // = (PFNWGLCHOOSEPIXELFORMATARBPROC)wglGetProcAddress("wglChoosePixelFormatARB");
+PFNWGLCREATECONTEXTATTRIBSARBPROC myWglCreateContextAttribsARB;
+PFNWGLSWAPINTERVALEXTPROC vsyncfunc;
+
+
 CUSTOM_CVAR(Int, gl_vid_multisample, 0, CVAR_ARCHIVE | CVAR_GLOBALCONFIG | CVAR_NOINITCALL )
 {
 	Printf("This won't take effect until "GAMENAME" is restarted.\n");
@@ -581,8 +592,8 @@ bool Win32GLVideo::SetPixelFormat()
 	hRC = wglCreateContext(hDC);
 	wglMakeCurrent(hDC, hRC);
 
-	wglChoosePixelFormatARB = (PFNWGLCHOOSEPIXELFORMATARBPROC)wglGetProcAddress("wglChoosePixelFormatARB");
-	wglCreateContextAttribsARB = (PFNWGLCREATECONTEXTATTRIBSARBPROC)wglGetProcAddress("wglCreateContextAttribsARB");
+	myWglChoosePixelFormatARB = (PFNWGLCHOOSEPIXELFORMATARBPROC)wglGetProcAddress("wglChoosePixelFormatARB");
+	myWglCreateContextAttribsARB = (PFNWGLCREATECONTEXTATTRIBSARBPROC)wglGetProcAddress("wglCreateContextAttribsARB");
 	// any extra stuff here?
 
 	wglMakeCurrent(NULL, NULL);
@@ -612,7 +623,7 @@ bool Win32GLVideo::SetupPixelFormat(bool allowsoftware, int multisample)
 	colorDepth = GetDeviceCaps(deskDC, BITSPIXEL);
 	ReleaseDC(GetDesktopWindow(), deskDC);
 
-	if (wglChoosePixelFormatARB)
+	if (myWglChoosePixelFormatARB)
 	{
 		attributes[0]	=	WGL_RED_BITS_ARB; //bits
 		attributes[1]	=	8;
@@ -662,7 +673,7 @@ bool Win32GLVideo::SetupPixelFormat(bool allowsoftware, int multisample)
 		attributes[24]	=	0;
 		attributes[25]	=	0;
 	
-		if (!wglChoosePixelFormatARB(m_hDC, attributes, attribsFloat, 1, &pixelFormat, &numFormats))
+		if (!myWglChoosePixelFormatARB(m_hDC, attributes, attribsFloat, 1, &pixelFormat, &numFormats))
 		{
 			Printf("R_OPENGL: Couldn't choose pixel format. Retrying in compatibility mode\n");
 			goto oldmethod;
@@ -736,7 +747,7 @@ bool Win32GLVideo::InitHardware (HWND Window, bool allowsoftware, int multisampl
 	}
 
 	m_hRC = 0;
-	if (wglCreateContextAttribsARB != NULL)
+	if (myWglCreateContextAttribsARB != NULL)
 	{
 		int ctxAttribs[] = {
 			WGL_CONTEXT_MAJOR_VERSION_ARB, 3,
@@ -746,7 +757,7 @@ bool Win32GLVideo::InitHardware (HWND Window, bool allowsoftware, int multisampl
 			0
 		};
 
-		m_hRC = wglCreateContextAttribsARB(m_hDC, 0, ctxAttribs);
+		m_hRC = myWglCreateContextAttribsARB(m_hDC, 0, ctxAttribs);
 	}
 	if (m_hRC == 0)
 	{
diff --git a/src/win32/win32gliface.h b/src/win32/win32gliface.h
index 4457c5372..f39a9f70b 100644
--- a/src/win32/win32gliface.h
+++ b/src/win32/win32gliface.h
@@ -46,8 +46,6 @@ public:
 	void Shutdown();
 	bool SetFullscreen(const char *devicename, int w, int h, int bits, int hz);
 
-	PFNWGLCHOOSEPIXELFORMATARBPROC wglChoosePixelFormatARB; // = (PFNWGLCHOOSEPIXELFORMATARBPROC)wglGetProcAddress("wglChoosePixelFormatARB");
-	PFNWGLCREATECONTEXTATTRIBSARBPROC wglCreateContextAttribsARB;
 	HDC m_hDC;
 
 protected:
@@ -107,7 +105,6 @@ public:
 	Win32GLFrameBuffer(void *hMonitor, int width, int height, int bits, int refreshHz, bool fullscreen);
 	virtual ~Win32GLFrameBuffer();
 
-	PFNWGLSWAPINTERVALEXTPROC vsyncfunc;
 
 	// unused but must be defined
 	virtual void Blank ();
diff --git a/wadsrc/static/shaders/glsl/main.vp b/wadsrc/static/shaders/glsl/main.vp
index f0bbdd413..58ca931fb 100644
--- a/wadsrc/static/shaders/glsl/main.vp
+++ b/wadsrc/static/shaders/glsl/main.vp
@@ -52,7 +52,7 @@ void main()
 	
 	#ifdef SPHEREMAP
 		vec3 u = normalize(eyeCoordPos.xyz);
-		vec3 n = normalize(gl_NormalMatrix * gl_Normal);
+		vec3 n = normalize(TextureMatrix * vec4(tc.x, 0.0, tc.y, 0.0);	// use texture matrix and coordinates for our normal. Since this is only used on walls, the normal's y coordinate is always 0.
 		vec3 r = reflect(u, n);
 		float m = 2.0 * sqrt( r.x*r.x + r.y*r.y + (r.z+1.0)*(r.z+1.0) );
 		vec2 sst = vec2(r.x/m + 0.5,  r.y/m + 0.5);