Index: mttroot/mtt/bin/trans/make_stdin
==================================================================
--- mttroot/mtt/bin/trans/make_stdin
+++ mttroot/mtt/bin/trans/make_stdin
@@ -117,23 +117,19 @@
 
   ColumnVector	mttu	(MTTNU);
 
   // Set up the mttu vector
 #ifndef STANDALONE
-  static int MTT_input_row;
-  static int MTT_input_last;
-
-  Matrix MTT_input = get_global_value ("MTT_input").matrix_value();
-  mttu = MTT_input.row (MTT_input_row);
-
-  if (0 == MTT_input_row)
-    {
-      MTT_input_last = (MTT_input.length() / mttu.length()) - 1;
-    }
-  if (MTT_input_row < MTT_input_last)
-    {
-      MTT_input_row++;
+  int MTT_input_index	= static_cast<int>(get_global_value ("MTT_input_index").double_value ());
+  int MTT_input_last	= static_cast<int>(get_global_value ("MTT_input_last").double_value ());
+  Matrix MTT_input 	= get_global_value ("MTT_input").matrix_value();
+
+  mttu = MTT_input.row (MTT_input_index);
+
+  if (MTT_input_index < (MTT_input_last - 1))
+    {
+      set_global_value ("MTT_input_index", static_cast<double>(++MTT_input_index));
     }
   
 #else
   double t, u;
   strip_comments (cin);