MSI GT 780 DXR been gradually malfunctioning, nearly dead

(You may want to visit my post at BleepingComputer, where I have more links: hxxp://www.bleepingcomputer.com/forums/topic478724.html)

I purchased my MSI GT 780 DXR notebook in Feb, 2012. I would say about April I turned my computer on and after a coupl...