Tweak: set z scale to one, else tnl thinks we have a 3d texcoord.
diff --git a/progs/demos/multiarb.c b/progs/demos/multiarb.c
index 20aa29f..6fe35e7 100644
--- a/progs/demos/multiarb.c
+++ b/progs/demos/multiarb.c
@@ -52,7 +52,7 @@
          glLoadIdentity();
          if (i == 0) {
             glTranslatef(Drift, 0.0, 0.0);
-            glScalef(2, 2, 2);
+            glScalef(2, 2, 1);
          }
          else if (i == 1) {
             glTranslatef(0.0, Drift, 0.0);