********>Bugfix 23:
Author: John Mongan
Date: 09/01/2004

Programs: sander (constant pH calcualtions)

Description: If there is only one titrating site, a poorly initialized
             variable might lead to crashes

Fix:  apply the following patch to amber8/src/sander/mdread.f

------------------------------------------------------------------------------
*** mdread.f    2004/05/03 17:49:02     7.288
--- mdread.f    2004/08/20 20:49:06
***************
*** 497,503 ****
     common /cnstphresname/ resname
     namelist /cnstph/ stateinf, resstate, protcnt, chrgdat, statene,trescnt,resname

!    icumstat = 0
     icumchrg = 0

     write(6,'(a,a)') 'reading charge increments from file: ',cpin
--- 497,503 ----
     common /cnstphresname/ resname
     namelist /cnstph/ stateinf, resstate, protcnt, chrgdat, statene,trescnt,resname

!    icumstat = -1
     icumchrg = 0

     write(6,'(a,a)') 'reading charge increments from file: ',cpin


------------------------------------------------------------------------------

Temporary workarounds: none.