Hello, whenever I press the Power button on my computer, it starts up with a black screen telling how it came across and error due to new hardware or such. It asks the simple things such as "Run in safe-mode, Run with Command Prompt, run with default before this occurred, or run normally.) Either one of these I press it just turns the whole screen black, the only thing that shows is the mouse. It was working fine yesterday but for some reason not today.
Any help is appreciated, thank you.
Running Windows XP, and Norton Antivirus (If it's a virus or such.)
(Side note, I'm using a laptop.)

