I wanted to install rc4 on Windows XP in g:\pgsql and selected this in
the Installprocess.
PGDATA was already set to this directory.
However, PostgeSQL as well as the data-directory were installed at
C:\Programme\PostgreSQL\8.0.0-rc4
resp.
C:\Programme\PostgreSQL\8.0.0-rc4\data
Initdb and pg_ctl start as user postgres did find PGDATA (which I set as
universal system variable)
Regards
Christoph Becker