Trouble starting computer windows xp

Hi, I kind of have a problem starting windows xp.  After i press the power button, the dell logo comes out, and then a screen that says the following appears:

 

"We apologize for the inconvenience, but Windows did not start successfully.  A recent hardware or software change might have caused this.  If your computer stopped responding, restarted unexpectedly, or was automatically shut down to protect you files and folders, chose Last Known Good Configuration to revert to the most recent settings that worked.  If a previous startup attempt was interrupted due to a power failure or because the Power or Reset button was pressed, or if you aren't sure what caused the problem, choose Start Windows Normally."

 

And then they list Safe Mode, Safe Mode with Networking, Safe Mode with Command Prompt, Last Known Good Configuration, and Start Windows Normally.

 

When I start with any safe mode options, long list of words and numbers come out and stays that way.  When I choose last known good configuration or try to start windows normally, the Windows Xp loads with the little things moving across but after that the computer becomes silent and the screen just turns off/turns black, while the computers power is still on. 

 

By the way, this all started after I shut down in the midst of watching a dvd.

 

I would appreciate if anyone can help me with this.  Thanks!