Try it with another monitor also. Check the monitor's power cable.
Do you have any idea of how dry is the weather?
EDIT: Is the thing giving you eletric shocks? If not, gently rub the tip of you finger on some metal part of the case, with the machine running. If you feel some kind of "humming" by doing this you know the thing is charged somehow - Be carefull and don't blame me if you hair stretches out like a ginea pig...
Ricardo

- By Mark Bell