Sorry, but not very bright! I have just upgraded from XP to Vista Home Premium via the mesh DVD which I had to send for. I was having all sorts of problems as it would not upgrade and kept crashing. I then got rid of norton and it seemed to work fine. I have installed AVG instead of Norton. But I have no Aero and no Media Center. Do I have to install these sepatately? Or has something gone wrong? I have looked to see if this has been a common problem, but it does not seem to be. I don't want to start again particularly as evetything seems stable now - but I do want media center. Can anyone help?