Ok, that's bad then... don't know if they have a fuse but I never had to take one apart before. If you are handy with a screwdriver you could just unscrew the four screws on each side of the driver and pull out the board. There should be a small glass fuse inside, usually one below 1A. If this is toast you can put a new one in and test it again. These drivers are built with such perfection in detail it would amaze me if they don't have one.... give it a go.
If you get it working again try bringing the load closer to the drivers maximum output to prevent this from happening again.