I have an XBox 360 hooked up to my Windows 7 PC with a Realtek Gigabit on-board network interface. I have them connected via a Linksys WRT54G and 2 200Mbps powerline network adapters, which are running at approximately 120Mbps. Whenever I log into Media Center on the XBox, the menus and the response to the controller are laggy. The media plays back fine, and the XBox says that the network is performing well, however the menus are tough to navigate due to the latency. I have not been able to find a solution to this. Would buying a gigabit switch help me? Or does the problem lie with the powerline adapters? THANKS