I just bought a new pc abt a month ago. It is a Compaq with all the bells and whistles:) Model#SR2038X. I was supposed to get a free upgrade to Vista Premium via a website from Microsoft. Every time I go to upgrade it always says that there is some unrecoverable error and try again later. Well the problem when u try again later is that your certificate of authenticity is not valid bcoz the system already thinks u got your upgrade. I have had the info reset 2x by someone who is customer service for the site. Anyone else having these troubles too?