OVRMainMenu and GUI problem in Unity 4.6

Hey guys. Need a little help here.

Under Unity 4.6 with SDK 0.4.4 when I load the main menu gui (hit spacebar by default) I get this yellow warning:

Parent of RectTransform is being set with parent property. Consider using the SetParent method instead, with the worldPositionStays argument set to false. This will retain local orientation and scale rather than world orientation and scale, which can prevent common UI scaling issues.
UnityEngine.Transform:set_parent(Transform)
OVRUGUI:UIObjectManager(GameObject, String, Single, String, Int32) (at Assets/OVR/Scripts/Util/OVRUGUI.cs:248)
OVRUGUI:InitUIComponents() (at Assets/OVR/Scripts/Util/OVRUGUI.cs:235)
OVRUGUI:UpdateGUI() (at Assets/OVR/Scripts/Util/OVRUGUI.cs:120)
OVRMainMenu:Update() (at Assets/OVR/Scripts/Util/OVRMainMenu.cs:412)

Then if I load another scene, the menu no longer works. Which means I can't even hit escape to exit the game.
I get this red error in the editor repeating constantly:

MissingReferenceException: The object of type 'GameObject' has been destroyed but you are still trying to access it.
Your script should either check if it is null or you should not destroy the object.
OVRUGUI.UpdateVariable () (at Assets/OVR/Scripts/Util/OVRUGUI.cs:132)
OVRUGUI.UpdateGUI () (at Assets/OVR/Scripts/Util/OVRUGUI.cs:123)
OVRMainMenu.Update () (at Assets/OVR/Scripts/Util/OVRMainMenu.cs:412)

Looks like once I load it, it always checks in the same place when I load a new scene.. but it's been destroyed.
Sounds like it should be an easy fix.
Any pointers?

Thanks!