diff -u -r1.4 -r1.5
--- HelicalTrackCross.java	29 Jul 2008 18:08:05 -0000	1.4
+++ HelicalTrackCross.java	30 Jul 2008 00:11:50 -0000	1.5
@@ -71,7 +71,7 @@

     }
     
     /**

-     * Return a list of HelicalTrackStrips that contain the two strips that

+     * Return a list of HelicalTrackStrips that contains the two strips that

      * form the cross.
      * @return list of the two strips that form this cross
      */

diff -u -r1.2 -r1.3
--- HitUtils.java	29 Jul 2008 23:43:51 -0000	1.2
+++ HitUtils.java	30 Jul 2008 00:11:50 -0000	1.3
@@ -309,8 +309,10 @@

     
     private static double NonZeroDotProduct(Hep3Vector v1, Hep3Vector v2) {
         double cth = VecOp.dot(v1, v2);

-        if (Math.abs(cth) < _eps) cth = Math.copySign(_eps, cth);
-        if (cth == 0.) cth = _eps;

+        if (Math.abs(cth) < _eps) {
+          if (cth < 0.) cth = -_eps;
+          else cth = _eps;
+        }

         return cth;
     }