ACR 7.3 on a Mac
Someone on the Adobe Camera Raw forum responded with a solution to my problem.
Doing the CommandOptionShift while starting Adobe Bridge CS6 did the trick. My RW2 images show up and I can get to Adobe Camera Rwas preferences for Adobe Bridge.
I first tried the commandoptionshift with Photoshop, But the issue did not go away. I also had cleaned out my cache. I went into terminal to check the directory from a UNIX level to make sure it was empty. But that did not help the issue either.
Hopefully this might be valuable to someone else down the road.