The following bug has been logged on the website:
Bug reference: 6592
Logged by: Marcelo
Email address: nomm@ig.com.br
PostgreSQL version: 9.0.0
Operating system: Windows 7 Professional
Description:=20=20=20=20=20=20=20=20
Cannot connect to database Select error on connect.wsagetlasterror Return
10061 ($274D)