I tried for the 3erd time to install Vista on my HR20. The USB DVD ROM would boot fine… But then after it copied the files to the hard drive and rebooted I would get a blues screen that would give me an error about my receiver not being ACPI compliant. The way I got around this was by installing vista on a standard pc. Then I used the Vista deployment tools to create a set image. This installs a bit differently than the regular vista disk. It basically copies an image to the hard drive and then reconfigures it with the appropriate driver set. So finally I have Vista up and running on the HR20 but when I run media center windows can’t seem to access any of my DirecTV functionality. The good news is that I have full USB support. I tested a key&mouse set and the Linksys wireless network adapter works great. Can someone post the step by step procedures on fixing this problem.