Ok, my friend has a Dell Inspiron 6400 with Vista Home on it. For many reasons I want to put XP on it. Now these laptops come with this MediaDirect software, which allows the front media keys to work. The cd that comes for that says on the disc "Use this DVD before you install your operating system" Do I need to, or can this be done afterwards. Mind you, the partition Dell had on the computer for Mediadirect in the first place was removed there is only one partition with vista on it. Also, will there be any other problems with this computer once XP is on it? Does this all make sense? I have a hard time explaining this.... Will MediaDirect work with XP even? Any help would help.