I have an old iMac G4 that was connecting to our wireless internet great until I unplugged it to move it in my house. I restarted the computer and now it will not connect to our wireless internet. We also have 2 laptops that connect just fine. The desktop is picking up our wireless internet yet when I try to join the network it tells me that there was an error joining the selected AirPort network when I type in our password. I'm not sure why it is saying this!

The only thing I can think of is that we recently purchased an xbox 360 and had to mess with some of the internet configurations in order to connect to xbox live, did this mess with our desktop??

Please Help!!