Ever since there was an update to my graphic card's driver. (NVIDIA GeForce 9600 GT) I've started getting BSODs. I've had some not long ago because of the drivers too, it couldn't get to nv4_disp.dll. But then I updated my drivers and it went away, now it's back. So I've tried uninstalling the drivers and then installing them again, I haven't gotten any BSODs yet, but my Firefox seems to get graphical glitches occasionaly (also used to happen but disappeared), and now when trying to play Portal 2 through Steam, some lines just appear and disappear all the time, and sometimes the ground is blue, sometimes it'll start and I'll hear Glados and my jumps and shots but all I can see is weird glitches all over the screen. That's the biggest problem right now, not being able to play. But even if that'll be resolved, before I had that I had another problem: When trying to play Portal 2 with a friend, my screen would go black saying "Digital power saving mode" and then just black (LG screen), and then audio would repeat itself until I restart the computer. I've had that when playing Darksiders and Team Fortress 2 before, but for all I know it just disappeared until now. No idea what to do on both cases, for the first one all I saw was people suggesting to uninstall and install the drivers back, that's for the BSODs, couldn't find anything about the graphical glitches. For the power saving mode all I could find was either get a new screen (mine is really old, LG faltron slim, 16" if I recall correctly.) or update my BIOS, which I don't really want to mess with. So I don't know where to post any of this, and I thought I should just try here. Thanks in advance if anyone is willing to help.