Help me

Hi all!
I have installed Mandrake 9.0. and postgresql is installed automatically.
When I start postgresql by the command:
postmaster -i
have a error message:

The server must be started under an unprivileged user id to prevent
a possible system security compromise.  See the documentation for
more information on how to properly start the server.

With Mandrake 8.0, I do nothing to config postgresql. So what I can do to
config it now? Please help me! thank you very much.
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Tran Anh Tu
Vien CNTT - DHQG Ha Noi
Phone: 047680417-25   Email trantu@vnu.edu.vn
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