This error is showing up whenever I try to import hands.
I am sure that I installed PostgreSQL correctly - I can connect to the database using pgAdmin, using the same settings I am using for Elephant.
If I delete and re-add the database connection, it works fine until I try to import my hands again.
Please make sure you installed a 8.3 version of postgresql. Also try looking for a 'postgres.exe' process in the Taskmanager.
Are you sure you are entering the correct user/pw for postgresql (the ones you had chosen while you installed it)?
Yes, I had installed PostgreSQL correctly, with the correct version, and was using the correct username/password. The connection to the database was working fine, and when I chose 'test database settings' there were no problems - it was only when I tried to import hands that the error occurred.
I can report that the bug is gone in 0.41, though! 
