Sounds to me like you are missing a piece. This monitor uses an external ac adapter. So you should have a similar setup to a Laptop power adapter. You should have 2 pieces, a plug with a cord, and a power block with a cord. The power block (heavy brick type lump of plastic) will connect into the back of the monitor with a small connection and the wall plug cord will connect into the power block. Hope this helps.
Shembo, December 2009
