diff --git a/inc/paletteshader.h b/inc/paletteshader.h
index dccd9aa..26258ec 100644
--- a/inc/paletteshader.h
+++ b/inc/paletteshader.h
@@ -27,28 +27,12 @@ static const char *PaletteFragShader110Src =
 // new 
 
 static const char *PassthroughVertShaderSrc =
-    "#if __VERSION__ >= 130\n"
-    "#define COMPAT_VARYING out\n"
-    "#define COMPAT_ATTRIBUTE in\n"
-    "#define COMPAT_TEXTURE texture\n"
-    "#else\n"
-    "#define COMPAT_VARYING varying \n"
-    "#define COMPAT_ATTRIBUTE attribute \n"
-    "#define COMPAT_TEXTURE texture2D\n"
-    "#endif\n"
-    "\n"
-    "#ifdef GL_ES\n"
-    "#define COMPAT_PRECISION mediump\n"
-    "#else\n"
-    "#define COMPAT_PRECISION\n"
-    "#endif\n"
-    "\n"
-    "COMPAT_ATTRIBUTE vec4 VertexCoord;\n"
-    "COMPAT_ATTRIBUTE vec4 COLOR;\n"
-    "COMPAT_ATTRIBUTE vec4 TexCoord;\n"
-    "COMPAT_VARYING vec4 COL0;\n"
-    "COMPAT_VARYING vec4 TEX0;\n"
-    "\n"
+    "#version 130\n"
+    "in vec4 VertexCoord;\n"
+    "in vec4 COLOR;\n"
+    "in vec4 TexCoord;\n"
+    "out vec4 COL0;\n"
+    "out vec4 TEX0;\n"
     "uniform mat4 MVPMatrix;\n"
     "\n"
     "void main()\n"
@@ -60,35 +44,16 @@ static const char *PassthroughVertShaderSrc =
 
 
 static const char *PaletteFragShaderSrc =
-    "#if __VERSION__ >= 130\n"
-    "#define COMPAT_VARYING in\n"
-    "#define COMPAT_TEXTURE texture\n"
+    "#version 130\n"
     "out vec4 FragColor;\n"
-    "#else\n"
-    "#define COMPAT_VARYING varying\n"
-    "#define FragColor gl_FragColor\n"
-    "#define COMPAT_TEXTURE texture2D\n"
-    "#endif\n"
-    "\n"
-    "#ifdef GL_ES\n"
-    "#ifdef GL_FRAGMENT_PRECISION_HIGH\n"
-    "precision highp float;\n"
-    "#else\n"
-    "precision mediump float;\n"
-    "#endif\n"
-    "#define COMPAT_PRECISION mediump\n"
-    "#else\n"
-    "#define COMPAT_PRECISION\n"
-    "#endif\n"
-    "\n"
     "uniform sampler2D SurfaceTex;\n"
     "uniform sampler2D PaletteTex;\n"
-    "COMPAT_VARYING vec4 TEX0;\n"
+    "in vec4 TEX0;\n"
     "\n"
     "void main()\n"
     "{\n"
-    "    vec4 paletteIndex = COMPAT_TEXTURE(SurfaceTex, TEX0.xy);\n"
-    "    vec4 outTexel = COMPAT_TEXTURE(PaletteTex, vec2(paletteIndex.r, 0));\n"
+    "    vec4 paletteIndex = texture(SurfaceTex, TEX0.xy);\n"
+    "    vec4 outTexel = texture(PaletteTex, vec2(paletteIndex.r, 0));\n"
     "    FragColor = outTexel;\n"
     "}\n";
 
diff --git a/src/render.c b/src/render.c
index 06dd0cf..3274e65 100644
--- a/src/render.c
+++ b/src/render.c
@@ -171,9 +171,14 @@ static void BuildPrograms()
     if (OpenGL_GotVersion3)
     {
         PaletteProgram = OpenGL_BuildProgram(PassthroughVertShaderSrc, PaletteFragShaderSrc);
-        ScaleProgram = OpenGL_BuildProgramFromFile(ddraw->shader);
+
+        if (PaletteProgram)
+            ScaleProgram = OpenGL_BuildProgramFromFile(ddraw->shader);
+        else
+            OpenGL_GotVersion3 = FALSE;
     }
-    else if (OpenGL_GotVersion2)
+
+    if (OpenGL_GotVersion2 && !PaletteProgram)
     {
         PaletteProgram = OpenGL_BuildProgram(PassthroughVertShader110Src, PaletteFragShader110Src);
     }