Our home has a wireless network set up, but unfortunately an Xbox wireless adapter costs $100. There is a computer near the Xbox that is connected to the wireless network using a Wireless-G PCI Adapter with RangeBooster. I want to be able to share that connection between the Xbox and computer, but I can't enable Internet Connection Sharing. An ethernet cable from the PC to the Xbox has not worked, as it says it cannot acquire the IP address. Any ideas?