I'm running Vista installed in a boot camp partition from Parrallels, very frequently and just cancelled an SP 2 Install because I'd read some posts that made me uncertain whether it's safe (for Parallels). I really can't afford down-time/inaccessibility or to corrupt the OS. The reason I started the install is because Vista gives you iittle choice it nags and nags, and is essentially designed to make you (ultimately) install major updates. The posts I looked at were quite old, can anyone let me know if Parallels 4 will run vista SP2 (from a partition) ok..? I'm using Parallels 4.0.3848 on a Macbook with 4GB RAM & OSX 10.5.8 thanks in advance. j.