Thread is running or terminated; it cannot restart.
   at System.Threading.Thread.StartupSetApartmentStateInternal()
   at System.Threading.Thread.Start(StackCrawlMark& stackMark)
   at System.Threading.Thread.Start()
   at ZombieBlocks.NetworkedGameplayScreen.Activate(Boolean instancePreserved)
   at GameStateManagement.ScreenManager.LoadContent()
   at Microsoft.Xna.Framework.DrawableGameComponent.DeviceCreated(Object sender, EventArgs e)
   at System.EventHandler`1.Invoke(Object sender, TEventArgs e)
   at Microsoft.Xna.Framework.GraphicsDeviceManager.OnDeviceCreated(Object sender, EventArgs args)
   at Microsoft.Xna.Framework.GraphicsDeviceManager.CreateDevice(GraphicsDeviceInformation newInfo)
   at Microsoft.Xna.Framework.GraphicsDeviceManager.ChangeDevice(Boolean forceCreate)
   at Microsoft.Xna.Framework.GraphicsDeviceManager.EnsureDevicePlatform()
   at Microsoft.Xna.Framework.GraphicsDeviceManager.Microsoft.Xna.Framework.IGraphicsDeviceManager.BeginDraw()
   at Microsoft.Xna.Framework.Game.BeginDraw()
   at Microsoft.Xna.Framework.Game.DrawFrame()
   at Microsoft.Xna.Framework.Game.Paint(Object sender, EventArgs e)
   at Microsoft.Xna.Framework.GameWindow.OnPaint()
   at Microsoft.Xna.Framework.WindowsGameWindow.mainForm_Paint(Object sender, PaintEventArgs e)