I have Vista Home Premium and am trying to run "TVersity Media Server" to share videos to my XBOX 360. From the help screens for the application, I noticed that Windows Media Sharing must be disabled, or the 360 will not see TVersity server at all. I have Windows Media Center (included with Vista Premium). I believe I have found the option to disable sharing in "Network and Sharing Center". However, the "CHANGE" button doesn't do anything! I can click it, but it doesn't do anything! Any ideas? This is pretty much a clean install of Vista. Thanks!