delphi grid resolution

[Rowyna Kueh <rowyna.,at,.vplaces.net>]

 Hi all,
I used delphi for electrostatic calculations on my protein in vacuum
 with grid resolution 1.5 Angstrom/grid point and zero ionic strength.
 However, it always end up not finishing the job (core dumped). THis
 doesn't happen when i change the solvent dielectric to 80. Could
 anybody
 please suggest what can be done about it? I know a finer grid
 resolution
 will produce more accurate results but how fine should the grid
 resolution be? With the crashes, I had to run mine with 2.5
 Angstrom/grid point for both vacuum and water.
 Any help would be much appreciated.
 Thank you.
 Rowyna Kueh
 Postgraduate student
 Universiti Malaya