--- mtr-0.71/net.c.fix	2006-03-24 07:37:17.000000000 +0100

+++ mtr-0.71/net.c	2006-05-30 08:52:50.000000000 +0200

@@ -354,8 +354,9 @@

   totusec = (now.tv_sec  - sequence[seq].time.tv_sec ) * 1000000 +

             (now.tv_usec - sequence[seq].time.tv_usec);

-  /* impossible? if( totusec < 0 ) totusec = 0 */;

-

+  /* sometimes < 0 */

+  totusec = abs(totusec);

+  

   if ( addrcmp( (void *) &(host[index].addr),

 		(void *) &unspec_addr, af ) == 0 ) {

     // should be out of if as addr can change