Lost lighting gradiant

I'm using realtime and baked GI. It looked great for a while, but at some point I lost the smooth gradient. I guess this would be a problem with the baked resolution. You can see clear bands in the shadows. Rebuilding and adjusting all of the settings hasn't fixed it so far. What could have caused this, how can I fit it and keep it from happening in the future. Sorry for the dark images, but it's a problem with the shadows. Thanks.

1992215--128924--shadow_01.jpg 1992215--128925--shadow_02.jpg

I had disabled my camera that was set to HDR with all of the effects applied. Darndest thing.