Installing Service Bus 1.0 on Win2008R2 Std crashes with type initializer

Hi! I'm trying to install Windows Server Service Bus 1.0 on a standard Windows 2008R2 blade and while using the Wizard (or even trying to go into PowerShell) I get a type initializer error on the Type SessionStateScope. Has anyone else run into this?

[Error] [1/31/2013 9:40:14 AM]: System.TypeInitializationException: The type initializer for 'System.Management.Automation.SessionStateScope' threw an exception. ---> System.InvalidOperationException: Dynamic operations can only be performed in homogenous AppDomain.

   at System.Runtime.CompilerServices.CallSiteBinder.BindCore[T](CallSite`1 site, Object[] args)

   at System.Dynamic.UpdateDelegates.UpdateAndExecute1[T0,TRet](CallSite site, T0 arg0)

   at System.Management.Automation.Language.PSVariableAssignmentBinder.ObjectRule(CallSite site, Object obj)

   at System.Management.Automation.PSVariable..ctor(String name, Object value, ScopedItemOptions options, Collection`1 attributes)

   at System.Management.Automation.SessionStateScope..cctor()

   --- End of inner exception stack trace ---

   at System.Management.Automation.SessionStateScope.AddSessionStateScopeDefaultVariables()

   at System.Management.Automation.SessionStateScope.GetPrivateVariables()

   at System.Management.Automation.SessionStateScope.SetVariable(String name, Object value, Boolean asValue, Boolean force, SessionStateInternal sessionState, CommandOrigin origin, Boolean fastPath)

   at System.Management.Automation.SessionStateInternal.InitializeSessionStateInternalSpecialVariables(Boolean clearVariablesTable)

   at System.Management.Automation.SessionStateInternal..ctor(SessionStateInternal parent, Boolean linkToGlobal, ExecutionContext context)

   at System.Management.Automation.ExecutionContext.InitializeCommon(AutomationEngine engine, PSHost hostInterface)

   at System.Management.Automation.AutomationEngine..ctor(PSHost hostInterface, RunspaceConfiguration runspaceConfiguration, InitialSessionState iss)

   at System.Management.Automation.Runspaces.LocalRunspace.DoOpenHelper()

   at System.Management.Automation.Runspaces.RunspaceBase.CoreOpen(Boolean syncCall)

   at Microsoft.ServiceBus.ConfigWizard.CommandletHelper.InvokePowershell(Command command, Action`3 updateProgress)

   at Microsoft.ServiceBus.ConfigWizard.ProgressPageViewModel.CreateSBFarm(FarmCreationModel model)