Hi Everyone, I am trying to give an update here so that maybe it will be easier for someone to help me out now. I have gone through the lapack installation and the atlas installation and everything seems to have worked fine. Everything was compiled using the 'fPIC' option and I figured out how to make shared blas and lapack library files with atlas. Also, I figured out how to tell Atlas that I want a COMPLETE lapack. Now I am having trouble with the numpy install. In the site.cfg file, I included the location where I have the include and lib files for lapack. After install, when I test, I get the following: [dfranci@alpha ~]$ python -c 'import numpy; numpy.test()' Traceback (most recent call last): File "<string>", line 1, in <module> File "/ronaldo/pkg/dfranci/Python-2.5.2/lib/python2.5/site-packages/numpy/__init__.py", line 143, in <module> import linalg File "/ronaldo/pkg/dfranci/Python-2.5.2/lib/python2.5/site-packages/numpy/linalg/__init__.py", line 47, in <module> from linalg import * File "/ronaldo/pkg/dfranci/Python-2.5.2/lib/python2.5/site-packages/numpy/linalg/linalg.py", line 29, in <module> from numpy.linalg import lapack_lite ImportError: liblapack.so: cannot open shared object file: No such file or directory I notice one thing here that concerns me: numpy is trying to import a module that it calls "lapack_lite". Does numpy always build such a module? If I am trying to get the complete lapack, did I do something wrong? Thanks in advance, Frank