But i can open it at my fulltime office job, at my mothers house and my sisters house.
So there is something about your particular computer.
My first guess would be you have a Firewall or anti-virus program installed which is not allowing the connection.
Another possibility is the browser you are using and its various security settings.
A google search reveals that you (or somebody) have been spraying this question all over the net in Linux related forums. This brings up the question: What are the various operating systems/browsers that you have suceeded/failed on???
Whoever told you the problem would be fixed by removing and reinstalling Java was blowing smoke.
Bill