Index: mttroot/mtt/bin/trans/make_stdin
==================================================================
--- mttroot/mtt/bin/trans/make_stdin
+++ mttroot/mtt/bin/trans/make_stdin
@@ -21,14 +21,23 @@
                        mttx : StateVector;
                        mtty : OutputVector);
 
 {Created by MTT on $date for standard input to simulation}
 
-VAR t : REAL;
+VAR t : REAL; ch: char;
 
 BEGIN{$1_input}
+
+  {Zap comments}
+  REPEAT
+    read(ch);
+    IF ch="#" THEN 
+      readln;
+  UNTIL NOT (ch="#");
+
   read(t); { Read, and discard, first column (time) }
   FOR mtti:=1 TO $Nu DO {Read the inputs}
-     read(mttu[mtti]);
+    read(mttu[mtti]);
   readln; {Next line}
+
 END{$1_input};
 EOF