ObjectManagers problem

[Jonotron]

Hey,
I'm trying to use two managers.  One for Objects, and one for GUI.  When I run the game, I only see the GUI, but no objects.  The weird part is I still see the skybox, just not the models/terrain.  When I go into wireframe mode.  I can see the wireframe of all the objects and the gui buttons.  Why is it not rendering my objects?!?!
I call the draw functions from here in the Engine.cs:

Code:

            GUIManager.Draw(graphics.GraphicsDevice);
            ObjectManager.Draw(graphics.GraphicsDevice);

The draw function in the GUIManager and the ObjectManager looks like this:

Code:

       public static void Draw(GraphicsDevice device)
        {
            if (controls.Count != 0)
            {
                foreach (GUIButtonSimple obj in controls.Values)
                {
                    if (obj is iObjectRenderable)
                    {
                        ((iObjectRenderable)obj).Render(device);
                    }
                }
            }
        }

        public static void Draw(GraphicsDevice device)
        {
            // Draw the child objects
            foreach (BaseObject obj in objects.Values)
            {
                obj.Draw(device);
            }
        }

Any help is appreciated!

[mikeschuld]

Are you using sprites for your gui? the spritemanager class sets a  lot of states on the video card that might not be getting reset correctly. This is my best guess at the cause. Look around on the XNA blogs (the Microsoft ones) as I remember one of their guys (Michael Klutcher maybe?) posted something about the sprite render states a while back.