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[jzwanzig@dal.ca]

Dear Colleagues,

I am computing the phonon spectrum of a cubic solid (with a large unit cell). 
I am a little puzzled about the input variable "ngqpt" for anaddb. I computed 
the phonons using kptrlatt 2 2 -2  -2 2 -2  -2 2 2, and the set of qpts 
obtained from this as in the tutorial. There were six such q-points, 
including gamma. What is the proper input for anaddb? ngqpt 2 2 2, or 
something else? I am afraid I made a mistake with my initial choice of 
kptrlatt, and it is not really compatible with what anaddb can do. Any advice 
is welcome.

Thanks,
Joe