Hi, I had a nice build system set up on my VM ubuntu 8.10 server until I broke the VM. :) After rebuild the VM I am obviously reinstalling all the packages. Boost Python is causing me trouble. I built it from svn using bjam, boost 1_40_0. I can compile my python extension without error but when I run it the python code that uses it, I get: ImportError: libboost_python-gcc43-d-1_40.so.1.40.0: cannot open shared object file: No such file or directory I have this file on my system, and have copied it to /usr/local/lib simon@fenixurth:~/WorkingCopies/server/extended$ locate libboost_python-gcc43-d-1_40.so.1.40.0 /home/simon/source/boost/bin.v2/libs/python/build/gcc-4.3.2/debug/libboost_python-gcc43-d-1_40.so.1.40.0 /home/simon/source/boost/stage/lib/libboost_python-gcc43-d-1_40.so.1.40.0 /home/simon/WorkingCopies/server/extended/libboost_python-gcc43-d-1_40.so.1.40.0 /usr/local/lib/libboost_python-gcc43-d-1_40.so.1.40.0 Why is this not found? Thanks Simon