Dear Dr. Hines, In the past I have mentioned the problem ofthat the unix shell sh does not respond to $NEURONHOME.I know the reason:the 32 bit sh-version does have this problem, while the 16 bit sh-version does not. So I use the other shell version and everything works well. I thought I should mention this because it saves a lot of time if one knows this. sincerely yours, Theo de Vlieger dvlieg@bio.vu.nl