Having the same problem...I have a haunch is heat...Stopped using this desktop for games for about 6 months...Once in a while I open the desktop and vacuum the the vents and insides, the problem disappear, and after a month or so it is back...Maybe the Alienware High-Performance Liquid Cooling System is failing, because lately I get this from Alien ware Thermal controller, after it crashes...
System.NullReferenceException: Object reference not set to an instance of an object.
at AlienLabs.ThermalControls.Domain.Classes.CommunicationServiceClass.get_IsChassisSupportingVenting()
at AlienLabs.ThermalControls.Domain.Profiles.Classes.ProfileReaderClass.newProfileFor(ProfileData ProfileData, ProfileRow profileRow, Int32 position)
at AlienLabs.ThermalControls.Domain.Profiles.Classes.ProfileReaderClass.Read()
at AlienLabs.ThermalControls.Domain.Profiles.Classes.ProfileRepositoryClass.ReadProfiles()
at AlienLabs.ThermalControls.Controller.Classes.ProfileManagerClass.Init()
at AlienLabs.ThermalControls.Controller.Main.processWindowsLoaded()
at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
at MS.Internal.FrameworkObject.OnLoaded(RoutedEventArgs args)
at System.Windows.BroadcastEventHelper.BroadcastEvent(DependencyObject root, RoutedEvent routedEvent)
at System.Windows.BroadcastEventHelper.BroadcastLoadedEvent(Object root)
at System.Windows.Media.MediaContext.FireLoadedPendingCallbacks()
at System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks()
at System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget)
at System.Windows.Media.MediaContext.RenderMessageHandler(Object resizedCompositionTarget)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
2010 System, Alienware ALX Aurora Desktop,I ntel® Core™ i7 930 Quad Core Processor (2.8GHz, 8MB Cache, Nvidia GeForce 1.5 GTX 480, Cooling Option Alienware High-Performance Liquid Cooling