wined3d: Default to GLSL. This is safe because we now have proper ps2.0/vs2.0 detection.

dlls/wined3d/directx.c

@@ -335,7 +335,13 @@ static void select_shader_mode(
     if (wined3d_settings.vs_mode == VS_NONE) {
         *vs_selected = SHADER_NONE;
     } else if (gl_info->supported[ARB_VERTEX_SHADER] && wined3d_settings.glslRequested) {
-        *vs_selected = SHADER_GLSL;
+        /* Geforce4 cards support GLSL but for vertex shaders only. Further its reported GLSL caps are
+         * wrong. This combined with the fact that glsl won't offer more features or performance, use ARB
+         * shaders only on this card. */
+        if(gl_info->vs_nv_version < VS_VERSION_20)
+            *vs_selected = SHADER_ARB;
+        else
+            *vs_selected = SHADER_GLSL;
     } else if (gl_info->supported[ARB_VERTEX_PROGRAM]) {
         *vs_selected = SHADER_ARB;
     } else {

dlls/wined3d/wined3d_main.c

@@ -39,7 +39,7 @@ wined3d_settings_t wined3d_settings =
     VS_HW,          /* Hardware by default */
     PS_HW,          /* Hardware by default */
     VBO_HW,         /* Hardware by default */
-    FALSE,          /* Use of GLSL disabled by default */
+    TRUE,           /* Use of GLSL enabled by default */
     ORM_BACKBUFFER, /* Use the backbuffer to do offscreen rendering */
     RTL_AUTO,       /* Automatically determine best locking method */
     0,              /* The default of memory is set in FillGLCaps */
@@ -184,14 +184,10 @@ BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpv)
             }
             if ( !get_config_key( hkey, appkey, "UseGLSL", buffer, size) )
             {
-                if (!strcmp(buffer,"enabled"))
-                {
-                    TRACE("Use of GL Shading Language enabled for systems that support it\n");
-                    wined3d_settings.glslRequested = TRUE;
-                }
-                else
+                if (!strcmp(buffer,"disabled"))
                 {
                     TRACE("Use of GL Shading Language disabled\n");
+                    wined3d_settings.glslRequested = FALSE;
                 }
             }
             if ( !get_config_key( hkey, appkey, "OffscreenRenderingMode", buffer, size) )