Install this update to enable Virtual Machine Manager 2008 Beta (VMM) to function with Release Candidate 1 (RC1) to the Hyper-V role. After you install this update, you may have to restart your computer. Once you have installed this update, it cannot be removed Download: http://connect.microsoft.com Note: Before installing this hotfix your Hyper-V needs to be RC1. With this update you cannot manage Hyper-V RC0 hosts. Technorati Tags: Virtualization , Hyper-V , SCVMM 2008...(read more)

Read the complete post at http://scug.be/blogs/scvmm/archive/2008/06/10/scvmm-2008-beta-hotfix-for-hyper-v-rc1.aspx