diff --git a/build/pdp10-ka/start b/build/pdp10-ka/start
index 7ff8e023..53daea7d 100755
--- a/build/pdp10-ka/start
+++ b/build/pdp10-ka/start
@@ -34,10 +34,16 @@ tvcon() {
     started "TV-console" "$!"
 }
 
+type340() {
+    cp build/pdp10-ka/run out/pdp10-ka/run
+}
+
+sed 's/set dpy enabled/set dpy disabled/' < build/pdp10-ka/run > out/pdp10-ka/run
+
 while test -n "$1"; do
     "$1"
     shift
 done
 
-tools/sims/BIN/pdp10-ka build/pdp10-ka/run
+tools/sims/BIN/pdp10-ka out/pdp10-ka/run
 exit 0