Hi, I'm new to macs and new to this forum, though I've searched a long time to try to find a way to fix this problem. I am running OS 10.5 and it has no issues with connectivity on my wireless network. As well, a PC computer in my house has no issues connecting to this same wireless network on a cheap USB reciever so this is quite vexing for me. While running XP Home SP2, enabling either WPA or WPA2 (I've tried both but I am confident based on the router that it is just WPA), I have been unable to connect to my network. Windows tells me it is connecting to the network after I give it the WPA password and displays a loading bar for a period of time before it gives up and the loading window goes away, the network still unconnected. I have tried connecting in the same way at a friend's house to a WPA encrypted network and got the same result, where others were able to connect, although on PCs. If I disable the encryption on my router or change it to a WEP encryption, I can connect to the network wirelessly but internet connectivity is weak and occasionally cuts out. This is not my greatest concern, however. I can connect to the network on XP with a wired connection. I have loaded all the drivers from the Leopard disc and reloaded them just to be sure. I would like to know if this is a hardware problem and I should bring it in somewhere for service or if I just need to change some settings or possibly load a third party program to manage my connection. Hardware: MacBook Pro (Shipped with 10.5) NETGEAR WGR614 v4 Router Thanks and I apologize in advance if I've missed any critical details or this exact problem has come up before and I've just missed it in my searching. I don't know the details of the network at the friend's house, unfortunately.