Index: mttroot/mtt/lib/cc/mtt_HJ_Solver.hh
==================================================================
--- mttroot/mtt/lib/cc/mtt_HJ_Solver.hh
+++ mttroot/mtt/lib/cc/mtt_HJ_Solver.hh
@@ -18,10 +18,12 @@
   { static_ptr = this; VARS = nyz; };
   
   static double
   f (double tryUi[], int nyz);
   
+  ~HJ_Solver (void) {};
+
 protected:
 
   void
   Solve (void);
 

Index: mttroot/mtt/lib/cc/mtt_Hybrd_Solver.cc
==================================================================
--- mttroot/mtt/lib/cc/mtt_Hybrd_Solver.cc
+++ mttroot/mtt/lib/cc/mtt_Hybrd_Solver.cc
@@ -24,11 +24,11 @@
   static int limit_errors;
   static int unknown_errors;
   
   NLFunc fcn(&Hybrd_Solver::f_hybrd);
   NLEqn	 eqn(Solver::_ui,fcn);
-  //  eqn.set_tolerance(0.01);
+  eqn.set_tolerance(0.000001);
   Solver::_ui = eqn.solve(info);
 
   switch (info)
     {
     case 1:

Index: mttroot/mtt/lib/cc/mtt_Hybrd_Solver.hh
==================================================================
--- mttroot/mtt/lib/cc/mtt_Hybrd_Solver.hh
+++ mttroot/mtt/lib/cc/mtt_Hybrd_Solver.hh
@@ -20,10 +20,12 @@
     static_ptr = this;
   }
 
   static ColumnVector
   f_hybrd (const ColumnVector &tryUi);
+
+  ~Hybrd_Solver (void) {};
 
 protected:
 
   void
   Solve (void);

Index: mttroot/mtt/lib/cc/mtt_Reduce_Solver.hh
==================================================================
--- mttroot/mtt/lib/cc/mtt_Reduce_Solver.hh
+++ mttroot/mtt/lib/cc/mtt_Reduce_Solver.hh
@@ -18,8 +18,10 @@
     : Solver (ae,npar,nu,nx,ny,nyz)
   { ; };
 	
   void
   Solve (void);
+
+  ~Reduce_Solver (void) {};
 
 };
    

Index: mttroot/mtt/lib/cc/mtt_Solver.hh
==================================================================
--- mttroot/mtt/lib/cc/mtt_Solver.hh
+++ mttroot/mtt/lib/cc/mtt_Solver.hh
@@ -29,10 +29,12 @@
 	 const double		&t,
 	 const ColumnVector	&par);
   
   ColumnVector
   eval (const ColumnVector	&ui);
+
+  virtual ~Solver (void) {};
   
 protected:
   
   virtual void
   Solve (void) = 0;