hmmmm ok i installed teh Intel HD NUC Graphics Driver 15.33.42.4358 update last night and this morning my gaming desktop looked like this in video playback:

little colored blocks, flickering lines, sometimes a whole strip of the sceren goes green for a moment :/ it doesn't crash, it just looks horrible. my stomach dropped cuz artifacts usually mean dying hardware, right?? but it's suspicious that it started exactly after the update. how do I tell which one it is without spending money?? what am i doing wrong??