hello, first time poster here and long time reader.
So, I woke up this morning with my computer having strange lines flickering across the screen and a message asking if I wanted to do a system restore. It would run through the system restore and still do the same thing. Eventually after restarting a few times, It finally started up. But, I'm wondering what happened to cause this or what part is going bad so I can replace it. I left the computer on overnight when it happened.