are there any sorta lights blinking when u switch it on? you should see like a little green or red light when u turn it on. if you dont see any sorta light no noise nothing then try to change the power cable, if u dont have a spare one remove the one from the monitor and plug it into your computer only for testing.

Where there is Fire...There is Coke. Where there is Rum..There is Smoke - Sir Smoke-a-Lot