VZ1 showed another update available VPSes stopped working on IIS again, we are installing now and rebooting seeing if it resolves.
We are also working with Parallels on a path to their HyperVisor based server virtualization that will remove such issues, but have managed to run into a few issues in the process of testing, got them resolved attempted to move a couple customers on 2003 nodes, and they had other issues, which we are working out now.