Last week I was re-installing Windows Vista in my wife's Dell Inspiron 1520. Everything was going well, when suddenly the screen was showing random pixels on the screen. I experienced the same issue few years ago when my favorite machine start showing the same pattern. It starts with few pixels, then you can barely understand what's going on in the desktop and finally screen becomes black or the computer restarts itself. At that time the only solution was to throw my precious to the trash can (I am talking about the PC!). It was already old and almost impossible to find spare parts that will cost less than a new computer. I was concerned that the faith of my wife's computer will be the same. We tried different things, like disabling some hardware in the BIOS and running RivaTuner to try to keep the GPU cool by "underclocking it". As expected, nothing actually worked. The machine was behaving worst and worst. After some research I found that it was possible to &quo