Does Light Flow work on the Verizon S3?

I got an S3 after using IPhones and BB's for the last few years. Been reading this site and came across the Light Flow app, downloaded it, and it looks really good, but it doesn't seem to work properly on my phone. It's an unrooted S3, with 4.1.1. I went to Light Flow's blog and followed their instructions. I set up a couple of simple actions like turn on the light when BT is enabled, Light when charging, etc. The light test works, but the notifications I set up do not. I changed the led notifications as per the instructions and enabled the service.

Any Ideas? Or is it that LF doesn't work on this phone?

Dave

I just noticed something. It does seem to work when the screen is off. Is that how it works? Does it work with the screen on? Or is it something I haven't discovered yet?

OK I got it guys. Just took some time. Mostly used with the screen off.