Okay everyone...I'm new here. I don't know if I'm posting this in the right spot so someone please tell me if I'm not. I have an hp Pavillion ze4800. I have been having a few issues with it but the most recent is my biggest concern. When I press the power button, the power light comes on but the hardrive light does nothing. I hear the fans power up but it just sits on a plain black screen. I know something is VERY wrong. Any help would be much appreciated.