Don't generate spurious vs, move the enable a bit to do that.

progs/vp/vp-tris.c

@@ -90,7 +90,9 @@ static void Init( void )
    }
 
    fprintf(stderr, "%.*s\n", sz, buf);
-      
+
+   glEnable(GL_VERTEX_PROGRAM_NV);
+
    glGenProgramsARB(1, &prognum);
 
    glBindProgramARB(GL_VERTEX_PROGRAM_ARB, prognum);
@@ -168,8 +170,6 @@ static void Display( void )
    glClearColor(0.3, 0.3, 0.3, 1);
    glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
 
-   glEnable(GL_VERTEX_PROGRAM_NV);
-
    glBegin(GL_TRIANGLES);