SQL Server 2008 R2 Install Freezing (Hyper-V)

During the middle of the SQL Server 2008 R2 Install, SQL Server always freezes on the same step when installing in Hyper-V ( SQL_DTS_VSTAConfiguration_install_Cpu64 ):

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This is a Fresh Windows Server 2008 R2 Install within a Windows Server 2008 R2 Hyper-V System:

Dual Xeon E5345 2.33 GHz

Supermicro MBD-X7DAL Dual Socket 771 mobo

24GB RAM

Virtual Machine:

4 vCPUs

6GB RAM

Every virtual machine I create has the same problem installing. I have to quit the install, remove all components, reboot, and restart the install. I had the same problem on a core i5 2500 hyper-v box earlier. The only software installed on the Hyper-V server is the Hyper-V role itself, Adobe Reader, Office, and Forefront AV client.

Thanks,

John