Hi Eddieb68, if the lights on your Slingbox are not turing on it could be that the power supply is defective.
You can purchase a replcement here.
If you want to know what the lights on the Slingbox means just go ahead and check this article here:
If this doesn't help, please let us know. The more details and information can provide, the better we (the forum community and Sling Media) can help.
Got a spare torchbulb laying around?. Using a 6v or higher one the power unit should be able to light it up, under 6v it may blow the bulb, but that cost peanuts compared with maybe purchasing a new power unit unnecessarily. It's not a good test of power supply capacity, but it will show if it definitley isn't working..