Hi all people!

I am actually having a fantastic experience with ubuntu 8 hardy heron.
There's just a small question I'd like to do.
I have a wireless network...and sometimes, for strange reasons (the router is not so good) the network goes down. Sometimes ubuntu can restore it and connect...sometimes I have to do it manually by selecting the network and giving again the password...sometimes just by selecting again the network, I am not asked for a password.

What can I do in order to ubuntu always try to restore the connection, without my help? So if I am away from my pc and the router comes back up, after let's suppose 1 hour, it automatically restores the connection without me doing anything?

Thanks all