Hi, I have a dell inspiron 1000 thats about 4 years old. it has really been acting up lately, randomly shutting down. I have it sitting so the bottom is totally uncovered so it cannot over heat. It is plugged into the wall. When i turn it on, it will get to the windows loading screen, then just shut off. This happened several time ina row. this is very annoying because i need my laptop for my work! Pleas help me ! Thank you. :4-dontkno