can i throw my last tuppance worth in here , this post is growing by the day and it is like a dog chasing its tail , the fact is we dont know what is going to happen until vista has gone into the public domain and like most of us in here we will upgrade at some time in the future . we will have to hold our breath and reload the oem version and see what happens ,other wise we spend the extra money and buy retail then no worries--- i think so let us sit tight and see what happens. one thing is for certain we will learn soon enough how it pans out when the early buyers have problems.