I have an 8gb machine (memory) and it runs without a hitch. Were the problems cleared during the sp1? I have windows 7 on other and I find both to be very similar except for the taskbar and some networking features. Are these past vista complaints or is there a valid reason? Windows 7 is nice but PR for vista I think at present is getting a bad rap while windows 7 is over hyped. What do you think? Just wondering because it seems that Vista runs good on the high end machines. XP will need to be upgraded on the business and low end machines which it appears that windows 7 will do well.