I am confussed... Andrew states that Vista is "Fully Supported" in build 1970 and 3150. Yet I and many others are not able to upgrade our XP VMs to Vista because of the ACPI issue.
I know that some users have gottten around this through a multi install process and creating a new VM (Tricking the Vista Upgrade into doing a fresh install.). But not being able to update your current VM and losing all your settings, programs and data does not seem to be "Fully Supported" to me.
Did I miss something that will allow me to update my XP VM? I have been just waiting for the next Parallels release assuming they would fix it. Right now my Vista Ultimate upgrade is sitting here collecting dust while I am still using XP.