--- src/pmemd/src/prmtop_dat.fpp	2008-03-31 20:22:38.000000000 -0500
+++ src/pmemd/src/prmtop_dat.fpp	2008-08-28 10:43:13.000000000 -0400
@@ -1156,8 +1156,11 @@
 
   ! Allocation of stuff that will later be deallocated:
 
+  ! Bugfix note: gbl_natex dimension increased to provide workspace for
+  ! extra points code...
+
   allocate(atm_numex(natom), &
-           gbl_natex(next), &
+           gbl_natex(next * 2), &
            stat = alloc_failed)
 
   if (alloc_failed .ne. 0) call setup_alloc_error