I've got an odd problem here I've never seen before.  I took the plunge and bought a top of the line Alienware 18 with all the bells and whistles (My wallet hates me right now).  The only problem is, it randomly locks up.  Not like a Blue Screen Of Death....I mean it just locks up completely.  The screen freezes, and nothing responds.  No mouse, no keyboard activity...nothing works.  It also locks up so quick, nothing is reported to the event logs.  It's literally like it just stops....completely. I've run through all the standard trouble shooting options I can think.  I disabled the SLI Video link...no change.  Turned off the SDD Cache.  No change.  Run through the Dell hardware diagnostics, everything is AOK.  Even disabled the IntelBoost.....still just locks up.  And there is no rhyme or reason as to when it locks up.  I can be surfing the internet, burning a DVD, even looking at a text file in notepad.  It just suddenly stops, and the only thing to do at that point is a hard reboot. Anyone else have these problems with the new Alienwares?  I'm beginning to think I've got a defective unit and am trying to figure out what the next step should be.  Thanks.