Yes, did that. I tried loading it from Stick as well. Same results on all 3 cameras. It takes 1 photo and then does nothing else even though it appears the script is still running. I don't get it.
So I tried resetting the camera back to the default settings and using CHDK. Now intervalometer works. So some custom camera setting I had broke the intervalometer script. I had changed a number of things in order to conserve battery life, among other things. I'll have to figure out which setting was conflicting.