hell..... that worked great. lol
I had the same problem and found a method so you don't have to flash stock and lose root.
http://www.droid-life.com/2012/05/3...r-galaxy-nexus-flash-over-any-rom/#more-71061
Just skip the wiping data step, but I did wipe the cache. I also backed everything up just in case tho. So far everything's been great!