Neither VMware Fusion nor Parallels Desktop Likes Windows VIsta ISO Files

I updated both Parallels Desktop for Mac 3.0 and VMware Fusion 1.1 to the latest builds last weekend. It looks like neither one can install Windows Vista from ISO files that are from the Microsoft MSDN subscription. However, the installation is going fine (using VMware Fusion right now) using a physical Vista DVD (also from MSDN).

Parallels 3 Build 5584 and VMware Fusion 1.1.1 Build 72241

I finally have a replacement for my long departed G4-based Mac mini (RIP Fall 2007). Since I finally have an Intel-based desktop, I'm moving my virtualization environment and related work from my 1st generation Macbook to the desktop. I used the opportunity to finally update both Parallels Desktop and VMware Fusion. Moving from a 1GB Macbook to a 2GB desktop really made a difference (as expected) when running virtual machines. I brought in an existing Windows XP Parallels Guest OS configuration to Parallels and built a new Fedora 8 Linux Guest OS in VMware Fusion. Although the common wisdom is that VMware is better, I think I still prefer Parallels. But, VMware Fusion is growing on me.