However some of you know me, it wasn't enough for my needs, and I jumped again on an NVidia card. AMD wasn't an option as I was needing support of CUDA.
Installed the latest driver (certified) from NVidia website, and started to enjoy it. Sure the 3D is blazing fast, sure I can use CUDA, and all went well... till I started to watch some youtube videos tutorial about a new product and here started my nightmare again. PC crashing, rebooting etc.
By looking around on the net I found a few people pointing out to NVidia drivers, and they said to roll back to older versions. Odd enough, the official website of NVidia didn't proposed me really old version of the drivers (beside a couple of previous one), and therefore I was wondering what to do. Lucky me, the package of the graphic card contained a CD with old drivers, and while usually I would not use those provided on a package CD, I thought, why not test it out? Well guess what, it seems my stability issues with videos and the card are gone. Let's see if remains like that.
Tech notes: I was using initially the 332.21 drivers and rolled back to 320.49 and the issue seems to be gone. Let's hope it continue to stay like that