PLEASE help!!! I just bought a new computer (Dell Inspiron 530 desk top) it's running XP. I can't connect it to the internet. We have 2 other computers that are connecting perfectly fine. They are a HP laptop running vista, and another that was custom built, running XP. The Dell has a wireless card in it, but it will not allow me to connect to our network (it identifies it, but when i type in the key it says there is limited or no connectivity). When I plug it into the router (D-LINK model # DIR-615) the LAN says limited or no connectivity. I know its not the cable (tried it on one of the other computers it works fine) and its not the port ( tried to connect it to each port and still not getting anythign) PLEASE help me!!!!