Ii can't connect to postgresql with VFP 8

I want to try postgresql with VFP 8 sp1, but i can't connect to new created
database.
I've installed pq + odbc driver. With pgAdminIII,I can connect to my
database using password '123456' and default user 'postgres',default port
5432 ,but with VFP i can't.Connection is a local one
This is the code I use (it always gives me 'Couldn't connect to the
database!') :

Local lnConn
lnConn =
SQLSTRINGCONNECT([Driver={PostgreSQL};Server=127.0.0.1;Port=5432;Database=persoane;Uid=postgres;Pwd=123456])
If lnConn < 0
MessageBox( "Couldn't connect to the database !" )
ELSE
MessageBox( "OK !" )
=SQLDisconnect( lnConn )

Endif

Thanks !

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