I recently installed postgreSQL to my desktop PC and it all went well, but since i work on my laptop i decided to install it there as well. I went through the same steps and the same installation process. Unfortunately here i get this error: Error connecting to the server: could not translate host name "localhost" to address: Unknown server error. I am really new to postgreSQL and still reading through the documentation. I have the latest version 9.1.2-1 and working with the pgAdmin III.