My computer is not left on for a long time, but when it is, most programs become very buggy after 12+ hours. I read that a CPU overheating can cause this to happen, but I'm not really sure. On SpeedFan, my temperatures (I'm not sure which one is CPU) are under 50 C if I'm not using many programs, but when I am using many programs, it jumps over 50 degrees Celcius a lot of times. What course of action should I take, or is there a problem at all? Thanks.