Was wondering if any of you had come across this problem before. I just started getting strange crashes today. Whenever my macbook crashes, strange squiggly pixel patterns appear. Now I cannot boot up past the grey apple screen with the loading wheel. I am attaching a few terrible pics I took with my phone but hopefully they will suffice. I've tried all the resets that I know of, but no success booting yet. Just hoping this isn't a serious hardware issue. Help me out here guys. Thank you!