Hello,
I installed PostgreSQL 8.3, Apache and phpPgAdmin, all in one.
I had to unistall it, in order to install Open ERP. Open ERP has to work with its own PostgreSQL 8.3, but after unistalling your package, there seem to be something that remained in my computer, because the PostgreSQL 8.3 from Open ERP will not get installed.
Thank you,
Nabil Ictech