diff --git a/alliance/src/nero/src/AAstar.cpp b/alliance/src/nero/src/AAstar.cpp
index a8154d20..72d312fc 100644
--- a/alliance/src/nero/src/AAstar.cpp
+++ b/alliance/src/nero/src/AAstar.cpp
@@ -1,7 +1,7 @@
 
 // -*- C++ -*-
 //
-// $Id: AAstar.cpp,v 1.9 2004/12/14 19:02:07 jpc Exp $
+// $Id: AAstar.cpp,v 1.10 2005/04/07 14:56:18 jpc Exp $
 //
 //  /----------------------------------------------------------------\ 
 //  |                                                                |
@@ -322,7 +322,10 @@ void  CAStar::CNodeAS::successors (CNodeASSet &NS, CNet *net, CNodeAS *(*success
       }
 
       // Check if the node is an obstacle.
-      if (neighbor.node().data.obstacle) continue;
+      if (neighbor.node().data.obstacle) {
+        cdebug << "+     neighbour is an obstacle." << "\n";
+        continue;
+      }
 
       // Check the tag map (already reached if tagged.)
       if (pNodeAS->tagged) continue;
diff --git a/alliance/src/nero/src/MMBK.cpp b/alliance/src/nero/src/MMBK.cpp
index 359eaabf..4dbad707 100644
--- a/alliance/src/nero/src/MMBK.cpp
+++ b/alliance/src/nero/src/MMBK.cpp
@@ -1,7 +1,7 @@
 
 // -*- C++ -*-
 //
-// $Id: MMBK.cpp,v 1.4 2002/10/24 07:51:33 hcl Exp $
+// $Id: MMBK.cpp,v 1.5 2005/04/07 14:56:18 jpc Exp $
 //
 // /-----------------------------------------------------------------\ 
 // |                                                                 |
@@ -770,7 +770,7 @@ CFig::~CFig (void)
 // -------------------------------------------------------------------
 // Method :  "CFig::addphseg()".
 
-void  CFig::addphseg (phseg_list &seg)
+void  CFig::addphseg (phseg_list &seg, bool isTerm )
 {
   MBK::addphseg ( phfig.fig
                 , seg.LAYER
@@ -781,6 +781,18 @@ void  CFig::addphseg (phseg_list &seg)
                 , seg.Y2
                 , seg.NAME
                 );
+
+  if ( !isTerm ) {
+    MBK::addphseg ( phfig.fig
+                  , layer2TALU(seg.LAYER)
+                  , seg.WIDTH
+                  , seg.X1
+                  , seg.Y1
+                  , seg.X2
+                  , seg.Y2
+                  , "obs"
+                  );
+  }
 }
 
 
@@ -928,6 +940,48 @@ bool  isCALU (char layer)
 
 
 
+// -------------------------------------------------------------------
+// Function  :  "layer2TALU()".
+
+char  layer2TALU (char layer)
+{
+  switch (layer) {
+    case  ALU1:
+    case TALU1:
+      return (TALU1);
+    case  ALU2:
+    case TALU2:
+      return (TALU2);
+    case  ALU3:
+    case TALU3:
+      return (TALU3);
+    case  ALU4:
+    case TALU4:
+      return (TALU4);
+    case  ALU5:
+    case TALU5:
+      return (TALU5);
+    case  ALU6:
+    case TALU6:
+      return (TALU6);
+    case TALU7:
+    case  ALU7:
+      return (TALU7);
+    case TALU8:
+    case  ALU8:
+      return (TALU8);
+    case TALU9:
+    case  ALU9:
+      return (TALU9);
+  }
+
+  return (TALU1);
+}
+
+
+
+
+
 // -------------------------------------------------------------------
 // Function  :  "layer2CALU()".
 
diff --git a/alliance/src/nero/src/MMBK.h b/alliance/src/nero/src/MMBK.h
index 512f9fff..275aef0f 100644
--- a/alliance/src/nero/src/MMBK.h
+++ b/alliance/src/nero/src/MMBK.h
@@ -1,7 +1,7 @@
 
 // -*- C++ -*-
 //
-// $Id: MMBK.h,v 1.2 2002/10/17 21:57:27 jpc Exp $
+// $Id: MMBK.h,v 1.3 2005/04/07 14:56:18 jpc Exp $
 //
 // /-----------------------------------------------------------------\ 
 // |                                                                 |
@@ -93,6 +93,7 @@ namespace MBK {
   extern bool  isCALU (char layer);
   extern char  layer2ALU (char layer);
   extern char  layer2CALU (char layer);
+  extern char  layer2TALU (char layer);
   extern long  cmpALU (char layer1, char layer2);
   extern char  topVIALayer (char type);
   extern char  bottomVIALayer (char type);
@@ -267,7 +268,7 @@ namespace MBK {
     losig_list *LOSIG (void) { return (lofig.fig->LOSIG); }
 
     // Modifiers.
-    void  addphseg (phseg_list &seg);
+    void  addphseg (phseg_list &seg, bool isTerm=false );
     void  addphvia (phvia_list &VIA);
     void  addphcon (phcon_list &con);
 
diff --git a/alliance/src/nero/src/MNodes.cpp b/alliance/src/nero/src/MNodes.cpp
index 3976fd9d..41471909 100644
--- a/alliance/src/nero/src/MNodes.cpp
+++ b/alliance/src/nero/src/MNodes.cpp
@@ -1,7 +1,7 @@
 
 // -*- C++ -*-
 //
-// $Id: MNodes.cpp,v 1.2 2002/10/13 14:22:47 jpc Exp $
+// $Id: MNodes.cpp,v 1.3 2005/04/07 14:56:18 jpc Exp $
 //
 //  /----------------------------------------------------------------\ 
 //  |                                                                |
@@ -121,8 +121,10 @@ void  CMatrixNodes::obstacle (CRect &rect, int z)
 
   for (x = rect.x1; x <= X; x++) {
     for (y = rect.y1; y <= Y; y++) {
-      if ( ! (*this)[ coord.set (x, y, z) ].terminal () )
+      if ( ! (*this)[ coord.set (x, y, z) ].terminal () ) {
+        cdebug << "+      Obstacle at (" << x << "," << y << "," << z << ")" << "\n";
         (*this)[ coord ].data.obstacle = true;
+      }
     }
   }
 }
diff --git a/alliance/src/nero/src/MPower.cpp b/alliance/src/nero/src/MPower.cpp
index dbc82318..ed9d965e 100644
--- a/alliance/src/nero/src/MPower.cpp
+++ b/alliance/src/nero/src/MPower.cpp
@@ -1,7 +1,7 @@
 
 // -*- C++ -*-
 //
-// $Id: MPower.cpp,v 1.2 2002/10/13 14:22:47 jpc Exp $
+// $Id: MPower.cpp,v 1.3 2005/04/07 14:56:18 jpc Exp $
 //
 // /-----------------------------------------------------------------\ 
 // |                                                                 |
@@ -325,7 +325,7 @@ void  CPowers::dump (CFig *fig)
           }
       }
 
-      fig->addphseg (seg);
+      fig->addphseg (seg,true);
 
       if (con1.ORIENT != (char)0) fig->addphcon (con1);
       if (con2.ORIENT != (char)0) fig->addphcon (con2);
diff --git a/alliance/src/nero/src/RMBK.cpp b/alliance/src/nero/src/RMBK.cpp
index 94435273..2a091e82 100644
--- a/alliance/src/nero/src/RMBK.cpp
+++ b/alliance/src/nero/src/RMBK.cpp
@@ -1,7 +1,7 @@
 
 // -*- C++ -*-
 //
-// $Id: RMBK.cpp,v 1.7 2004/12/14 19:02:07 jpc Exp $
+// $Id: RMBK.cpp,v 1.8 2005/04/07 14:56:18 jpc Exp $
 //
 //  /----------------------------------------------------------------\ 
 //  |                                                                |
@@ -173,6 +173,7 @@ void  CRBox::mbkload (MBK::CFig *mbkfig, int z, int zup, int rtype)
       if (pSeg->LAYER != MBK::CALU1) {
         rect->setSeg (*pSeg);
         
+        //cerr << "+ Top power obstacle" << endl;
         drgrid->nodes->obstacle (rect->grid, MBK::env.layer2z (pSeg->LAYER));
       }
 
@@ -227,14 +228,17 @@ void  CRBox::mbkload (MBK::CFig *mbkfig, int z, int zup, int rtype)
 
     if (flatSeg.LAYER == MBK::CALU1) continue;
 
-    flatSeg.X1    = pVIA->XVIA - pVIA->DX / 2;
-    flatSeg.X2    = pVIA->XVIA - pVIA->DX / 2;
+    long  xVIAshrink = 0;
+    if (pVIA->DX) { xVIAshrink = (pVIA->DX - MBK::SCALE(3)) / 2; }
+    flatSeg.X1    = pVIA->XVIA - xVIAshrink;
+    flatSeg.X2    = pVIA->XVIA + xVIAshrink;
     flatSeg.Y1    = pVIA->YVIA;
     flatSeg.Y2    = pVIA->YVIA;
     flatSeg.WIDTH = pVIA->DY;
 
     rect->setSeg (flatSeg);
 
+    //cerr << "+ Top VIA obstacle (" << pVIA->XVIA << "," << pVIA->YVIA << ")" << endl;
     drgrid->nodes->obstacle (rect->grid, MBK::env.layer2z (flatSeg.LAYER));
   }
 
@@ -261,7 +265,11 @@ void  CRBox::mbkload (MBK::CFig *mbkfig, int z, int zup, int rtype)
         itIns->second->flatseg (flatSeg, *pSeg);
         rect->setSeg (flatSeg);
 
+        //cerr << "+ Instance obstacle (" << flatSeg.X1 << "," << flatSeg.Y1 << ")" << endl;
         drgrid->nodes->obstacle (rect->grid, MBK::env.layer2z (pSeg->LAYER));
+
+        if ( !MBK::ISVDD (pSeg->NAME) && !MBK::ISVSS (pSeg->NAME) )
+          fig->addphseg ( flatSeg, true );
       }
     }
   }
@@ -463,7 +471,7 @@ void  CRBox::mbkload (MBK::CFig *mbkfig, int z, int zup, int rtype)
           // Dump the current one.
           if (seg.X1 < seg.X2) {
             // This is not a "dot" segment (i.e a VIA).
-            fig->addphseg (seg);
+            fig->addphseg (seg,pNet->external);
           }
 
           // Force segment restarting.
@@ -494,7 +502,7 @@ void  CRBox::mbkload (MBK::CFig *mbkfig, int z, int zup, int rtype)
             // Dump the current one.
             if (seg.X1 < seg.X2) {
               // This is not a "dot" segment (i.e a VIA).
-              fig->addphseg (seg);
+              fig->addphseg (seg,pNet->external);
             }
           }
 
@@ -507,7 +515,7 @@ void  CRBox::mbkload (MBK::CFig *mbkfig, int z, int zup, int rtype)
         // This segment touch the AB.
         if (seg.X1 < seg.X2) {
           // This is not a "dot" segment (i.e a VIA).
-          fig->addphseg (seg);
+          fig->addphseg (seg,pNet->external);
         }
       }
 
@@ -528,7 +536,7 @@ void  CRBox::mbkload (MBK::CFig *mbkfig, int z, int zup, int rtype)
           // Dump the current one.
           if (seg.Y1 < seg.Y2) {
             // This is not a "dot" segment (i.e a VIA).
-            fig->addphseg (seg);
+            fig->addphseg (seg,pNet->external);
           }
 
           // Force segment restarting.
@@ -560,7 +568,7 @@ void  CRBox::mbkload (MBK::CFig *mbkfig, int z, int zup, int rtype)
             // Dump the current one.
             if (seg.Y1 < seg.Y2) {
               // This is not a "dot" segment (i.e a VIA).
-              fig->addphseg (seg);
+              fig->addphseg (seg,pNet->external);
             }
           }
 
@@ -573,7 +581,7 @@ void  CRBox::mbkload (MBK::CFig *mbkfig, int z, int zup, int rtype)
         // This segment touch the AB.
         if (seg.Y1 < seg.Y2) {
           // This is not a "dot" segment (i.e a VIA).
-          fig->addphseg (seg);
+          fig->addphseg (seg,pNet->external);
         }
       }
 
@@ -703,7 +711,7 @@ void  CRBox::mbkload (MBK::CFig *mbkfig, int z, int zup, int rtype)
     seg.WIDTH = MBK::env.z2width (0);
     seg.LAYER = MBK::env.z2calu (0);
 
-    fig->addphseg (seg);
+    fig->addphseg (seg,itNet->second->external);
   }
 
 
diff --git a/alliance/src/nero/src/nero.cpp b/alliance/src/nero/src/nero.cpp
index d491f904..4ad449c8 100644
--- a/alliance/src/nero/src/nero.cpp
+++ b/alliance/src/nero/src/nero.cpp
@@ -1,7 +1,7 @@
 
 // -*- C++ -*-
 //
-// $Id: nero.cpp,v 1.7 2005/02/07 05:54:41 hcl Exp $
+// $Id: nero.cpp,v 1.8 2005/04/07 14:56:18 jpc Exp $
 //
 //  /----------------------------------------------------------------\ 
 //  |                                                                |
@@ -94,7 +94,7 @@ static void help (void)
 
 static void serial (void)
 {
-  cout << "                                S/N 20021117.1\n";
+  cout << "                                S/N 20050406.1\n";
 }