Black RESTART/ Power Button Screen- HELP

[megan.w89]

There is a balck screen that tells me to restart my computer. The screen is black, and has the white power button logo as a watermark behind the whole screens. It has multiple languages written saying that says it needs to be restarted, but no matter how much you do it, is still comes up with the same screen. I even took the battery out. Please help!

 

[UltraNEO*]

There is a balck screen that tells me to restart my computer. The screen is black, and has the white power button logo as a watermark behind the whole screens. It has multiple languages written saying that says it needs to be restarted, but no matter how much you do it, is still comes up with the same screen. I even took the battery out. Please help!

Something like this?

Hope this will help!
http://support.apple.com/kb/HT1392