I used cIOS57 rev21, so any cIOS with base ios 57 should work. However, some times, some games don't work with a certain drive. For example, all my games worked on my older drive, except call of duty black ops (no, it wasn't a IOS problem, I tried ALL of them). When I got a new drive, I loaded it with cIOS57 rev21 and it worked right away.
So what I would do, is place it on another drive, just to see whether that is the problem.