So, this has happened two times now, and it started when I let my brother play Portal 2 on it. When I switch over to the nVidia GPU (my laptop has two different GPU's, an Intel one and an nVidia one) and run something 3D, little blue dots appear across the screen and everything freezes. I rebooted it and tried Portal 2 again, it worked just fine afterwards.
Just now, I was messing around with MikuMikuDance, and a little notification came up saying that the driver kernel has stopped responding has recovered (after the screen flashed). Afterward, about a minute later, blue dots across the screen, whole PC frozen, not even the mouse cursor moved. Now it's acting fine again.
So, is my GPU dying? Should I be concerned? Should I do anything about it? Is it just overheating somehow?
I'm just somewhat scared because these are similar signs that previous dying GPUs I've used had.
Also, my laptop is an Alienware M11x with an nVidia GeForce GT335m and an Intel GMA 4500MHD (the Intel GPU hasn't given me trouble though, it's an nVidia issue). It's still under warranty, as it's only about five months old.
