Cannot Connect to Internet

[Macnificant]

I was on my Blackbook for 5 minutes when I got home from work today and left computer to get changed and came back and there was a mesage to restart computer by pressing and holding start button. But you could not do anythin else.

Ounce the computer was restarted I cannot connect to the internet.

I click the network and it says "The network requires a WPA password" I click ok and it says "connecton timeout"

And no connection

Any idea what is causing problem?

 

[r.j.s]

Might be something wrong with the Airport card, run a hardware test by inserting the OS X Install Disc 1 and hold D on boot.

 

[Macnificant]

Might be something wrong with the Airport card, run a hardware test by inserting the OS X Install Disc 1 and hold D on boot.

I tried that but nothing wrong detected

 

[r.j.s]

I tried that but nothing wrong detected

Reset the PRAM, hold P-R-Command-Option on boot.

 

[jim.arrows]

Umm, did you actually try re-entering the WPA password? Are you sure you're connecting to your own network? My parents complained that they kept dropping their wireless signal, when I got down there to check it out they'd inadvertently connected to the neighbor's unsecured network and were on the fringe of reception.

Finally, are there any other wireless devices on the network and are they ok?