Hi Neks, I have been having trouble reading my domain with 3 Scalars, having 3072 elements in Postnek. The same domain can be however read without the Scalars. Also the same domain with lesser elements, like 768, can be read fine with/without scalars. I am getting this kind of an error in the terminal. postx window width and/or height > MAX_WINDOWW/H! -*-Helvetica-Medium-R-Normal--*-*-*-*-*-*-*-* NEKTON Version 2.6 Enter Session Name --Default= g40cond_as Beginning Session g40cond_as renaming SESSION.NAME <http://session.name/> SESSION.NAME <http://session.name/>~ Session name: g40cond_as renaming g40cond_as.plt01 g40cond_as.plt01~ LTRUNC: string: 28 Tue Oct 11 15:13:33 PDT 2016 Reading geometry from g40cond_as .rea XYZ Min,Max: -40.0000 40.0000 -40.0000 40.0000 0.00000 1.00000 3072 3017 1 TRYING TO READ BC 3072 3072 2 TRYING TO READ BC 3072 3072 3 TRYING TO READ BC 3072 3072 4 TRYING TO READ BC 3072 3072 5 TRYING TO READ BC LTRUNC: string: 80 E E I E E I E E I E E E E I E E E E E E E E E E E E E LTRUNC: string: 80 E E I E E I E E I E E E E I E E E E E E E E E E E E E LTRUNC: string: 80 E E I E E I E E I E E E E I E E E E E E E E E E E E E this is iffmat: F 6.0000000 E E I E E I E E I E E E E I E E E E E E E E E E E E E E E I E E I E E I E E E E I E E E E E E E E E E E E E opening file: 80 E E I E E I E E I E E E E I E E E E E E E E E E E E E this is param(66): 6.0000000 LTRUNC: string: 80 E E I E E I E E I E E E E I E E E E E E E E E E E E E WARNING: Could not open file. E E I E E I E E I E E E E I E E E E E E E E E E E E E ** ERROR ** Can't open file g40cond_as.his Any help is appreciated. Thanks, Saikat. Saikat Mukherjee, PhD Student, Paul Research Group - http://www.me.vt.edu/mpaul/ Engineering Science and Mechanics, Virginia Tech.