I need help. Major computer issues.
At first everything will be running fine, then I'll leave to do something and I'll leave my computer on. I'll get back, usually an hour or two, and my screen-saver will be frozen. I'll try everything, but the only way to overcome it is by shutting the computer off by holding the power button. I'll turn my computer on, and the screen will be all blue dots and lines. It'll go through the loading screen like this, but it won't load the start-up. So I'll restart the computer and it prompts me right away that start-up didn't load and it asks if I want to go through recovery. I accept and everything'll be fine for a day or so and it'll do it again.
However, now the fan on my graphic card will speed up and slow down and it'll do this a few times. Then the computer will start, but nothing will appear on the monitor.