Soo. We have a wireless internet network and I'm trying to connect my new but used (i purchased it off someone else) macbook pro to it via airport but when putting in the password to my network says it's unable to make a connection? Is there a SPECIFIC thing I need to do?! Connected fine with ipods/iphones, other laptops.. basically anyone can come into the house and use my network if i give them the password, but its just not working on the macbook pro. any suggesitions? thanks x