My moniter will not come on any advice

is there any standby lights on the front? does it power on? if it doesn't have neither of those the monitor is fried. if it is running and their is nothing on the screen it is either the screen has failed. the motherboard for it is separate from the power. or something is wrong with the port on your computer. but most likely its the monitor. the flat screens aren't built to last long like the CRT's that were used before hand.

1. Try unplugging and reattaching the power cables.
2. Try swapping power cables for your monitor and your computer tower if they are the same.
3. If the above steps do not work, most probably your monitor is busted. Try to get it replaced/repaired if it's still under warranty.