diff --git a/stepmania/src/RageMath.cpp b/stepmania/src/RageMath.cpp
index c523095596..8918bac3bc 100644
--- a/stepmania/src/RageMath.cpp
+++ b/stepmania/src/RageMath.cpp
@@ -442,11 +442,18 @@ RageMatrix RageLookAt(
 
 RageMatrix RageOrtho( float l, float r, float b, float t, float zn, float zf )
 {
+	RageMatrix m(
+		2/(r-l),      0,            0,           0,
+		0,            2/(t-b),      0,           0,
+		0,            0,            -2/(zf-zn),   0,
+		-(r+l)/(r-l), -(t+b)/(t-b), -(zf+zn)/(zf-zn),  1 );
+/*
 	RageMatrix m(
 		2/(r-l),      0,            0,           0,
 		0,            2/(t-b),      0,           0,
 		0,            0,            1/(zf-zn),   0,
 		(l+r)/(l-r),  (t+b)/(b-t),  zn/(zn-zf),  1 );
+*/
 	return m;
 }