I currently have Vista (legit license) set up on my Boot Camp partition and am also accessing it through Parallels. I'm getting tired of the persistent activation messages -- and subsequent phone calls to Microsoft -- anytime I change a setting in Parallels. I love the Vista interface and the included apps (DVD Maker, the games, etc.) but this is starting to be a major irritant. Anyone else used Vista for a while and decided to downgrade to XP? I'm considering getting rid of Vista and running XP Pro instead in Boot Camp and Parallels. Talk me into making the switch... or talk me out of it and get me to stay with Vista. Curious to see what most will recommend... and reasons. My machine is a MacBook, 2.16 GHz Core 2 Duo, 2 GB RAM, 160 GB HD. Parallels version is 3.0 (Tuesday's release).