Sounds like the mainboard inside got hit by lightning. Even replacing the power supply will not work sometimes. If you have a multimeter, read the voltage coming off of the power supply end that goes into the CP unit. If you are getting voltage within 1-2 volts of the rated voltage, (I don't remember, but is printed on the PS), then the problem is not your power supply, and is probably a zapped mainboard. Replacing the unit sounds like it is your option. If you have a warranty or extended warranty on it, find out whether they will cover a zapped unit and exchange it for a new one. If not, you will have to purchase a new one. You might be able to find a good refurb'd unit out there somewhere to save you some extra money.
John Panzer