I use Carrara 2.1 in Win XP Home. It works pretty well, but I do run into some wierd issues, I blame it on XP Home. Overall i feel that Win XP Home blows chunks..XP Pro is the way to go, I'll be upgrading next month. XP Home seems to have wierd problems with certain software, I don't think it was really meant to used that hard, XP Pro is much more stable and robust.