Hey Lecia and welcome to the boards. Could you perhaps give us a little more information such as the brand (Dell, Compaq, Toshiba, etc.) and type (desktop/laptop) of computer you have?
Also, could you give us the Operating System (windows XP, Windows 2000, Vista, etc)?
Then tell us exactly what you were doing leading up to the problem, during, and after? Such as troubleshooting methods you took, if any. Does your computer still function?