W:helpproblem on Gamess/Tinker for QM/MM calculation



   I am doing some QM/MM calculations by Gamess/Tinker,
    I plan to build a water box in my system which will be treated as MM atoms.
    But I don't know how to set the boundary condition for the water box
   in Gamess input?
   Anybody could enlighten me on this problem??
   Thanks in advance.
 Best Regards
 Yang Zhenyu
   State Key Laboratory of Nonlinear Mechanics (LNM)
   Institute of Mechanics, Chinese Academy of Sciences
   No.15 Beisihuanxi Road
   Beijing 100080, P. R. China
 yangzy[at]lnm.imech.ac.cn