From: ngoc Date: 2006-03-06T23:38:41+09:00 Subject: Postgresql could not connect to Hi My environment is Windows XP and have installed 'gem install postgres-pr'. Postgresql is running. I have this code for test of connection require 'dbi' dbh = DBI.connect('DBI:Pg:my_db:localhost', 'my_account_name', 'my_passwd') rows = dbh.execute('select * from customer') row = rows.fetch puts row[0] The error message is C:\>ruby db.rb c:/program files/ruby/lib/ruby/site_ruby/1.8/dbi/dbi.rb:499:in `load_driver': is not a class/module (TypeError) from c:/program files/ruby/lib/ruby/site_ruby/1.8/dbi/dbi.rb:401:in `_ge t_full_driver' from c:/program files/ruby/lib/ruby/site_ruby/1.8/dbi/dbi.rb:381:in `connect' from db.rb:2 Thanks ngoc