Unable to open Admin Page

Hi all,

I got my domain name and hosting this morning through GoDaddy and installed WordPress using Installatron Applications Installer.

When I try to open my admin page on my Mac (running Safari) at http://www.jesign.com.au/wp-admin it just comes up with “Unable to open Page” something about not being able to find the server http://www.jesign.com.au

However a friend with the same setup can go to my admin page above and sees the login page. I can also get to the login page on my iPhone and PC.

This makes me think its something to do with my mac but I can’t think what. I have cleared my cache, reinstalled word press and restarted my computer.

Does anyone have any ideas? I have searched other posts having the same issues but haven’t found anything that helps that I haven’t done already