FYI, My My Book World is experiencing the exact same thing so, I'm very interested in a solution.
I purchased a USB drive to expand it and when it is connected, the situation becomes worse.
I updated firmware but that made no difference.
I am suspecting the hardware at this point.
Moderator Edit: Split from http://www.bleepingcomputer.com/forums/t/508496/my-book-world-edition-white-light-not-responding/
Edited by rotor123, 01 April 2014 - 11:05 AM.