Hi Here Is some tips to install PoPy DA on a RH6.2 First: You have to use Postgres7.0 with PoPy1.4 - download the Postgres7.0 with the development libraries (the development RPM from the Postgres download) - Download the Popy1.4.1 and the ZPopyDA0.7 - untar Popy1.4.1 - $./configure - change the Makefile ... the include path isn't /usr/include/postgres but it's /usr/include/pgsql - the file /usr/include/pgsql/os.h is a broken link .. we have to solve this prob download the source distribution of Posrgress7.0 (not the RPM) and substitute the broken link os.h with the file linux.h ... rename linux.h->os.h and put it in the correct path (/usr/include/pgsql) - make will now finish without errors!! and you get the Popymodule.so - copy the popymodule.so in the [zopedir]/lib/python - Untar the ZPopyDA and go to the ZPoPyDa directory in the lib/python/Products dir of Zope - modify the PoPy_db.py file changing, __compatibility__ = ('1.4','1.4.1') - Launch Zope and All WORKS!! Hope this Help Paolo Quaglia Information Technology Coordinator Sitek S.p.A. paolo@sitek.it