********>Bugfix 4:
Author: Chenglong Li and Ray Luo
Date: 04/20/2004

Programs: pbsa

Description: The program can exit with the error message "PB Bomb in
             epsbnd()";  this should not be an error, and should be treated
             as a warning instead.

Fix:  apply the following patch to amber8/src/pbsa/pb_force.f

------------------------------------------------------------------------------
*** pb_force.f	2004/03/12 08:10:47	1.9
--- pb_force.f	2004/04/21 01:18:03
***************
*** 3508,3515 ****
        if ( abs(insas(i,j,k)) == 2 .or. insas(i,j,k) == -1 ) then
           clstmp = atmsas(i,j,k)
           if ( clstmp == 0 ) then
!             write(6, *) 'PB Bomb in epsbnd(): No neighbor found for exposed boundary grid', i, j, k
!             call mexit(6,1)
           end if
          
        ! for a buried reentry grid point, find the atom that marked its neighoring exposed reentry
--- 3508,3515 ----
        if ( abs(insas(i,j,k)) == 2 .or. insas(i,j,k) == -1 ) then
           clstmp = atmsas(i,j,k)
           if ( clstmp == 0 ) then
!             ! write(6, *) 'No neighbor found for exposed boundary grid', i, j, k
!             nwarn = nwarn + 1
           end if
          
        ! for a buried reentry grid point, find the atom that marked its neighoring exposed reentry
------------------------------------------------------------------------------

Temporary workaround: none