Hey guys just got an imac is my sisters old computer and i think this is where the problems starts, is a 17 in g5, Problem is guys that im not getting an ip address, and when i go to network it says my ethernet is not conected. After like 3 hours of renewing and im not exactly sure what else i did, I FINALLY WENT ONLINE!! but today i restart the computer and when it went back on is offline again Im new to macs so any help will be nice, i know the airport was on, and is was trying to search for network however i dont have a network, thats where i think the problem was i did turn off airport and all that but im still not getting conection, any reason why im not receiveing my ip address automatically?? please help me no one ever had this problems??