Ok my computer is on and the monitor is on but there is no connection between the two. What isn't working so that the monitor and computer aren't working together? Its a desk top emachines I bought in 2003. runs windows 98 I believe. The emachines monitor went out on me not even a year after I bought it. I bought a used monitor from a friend. Its a gateway. Sorry that's all I got for now. I bought a new computer and monitor since this has happened.