I had that problem once because I had two installs of FS and just tried to copy and paste one from the other.
The answer was to run the RBE disc again, uninstall and reinstall not just the repair option and it worked for me. Not to say it'll work for you but it did for me.
I find FS and computers in general can be like chinese whipers where the story you tell them is not the same story they repeat back to you after different people ( Programs and applications) have been told the same thing and don't pass it on word for word and in the end things get corrupted along the way!
There's my 2 cents, sorry 5 cents they don't make 2's anymore! and soon it'll be 10's cos 5's are about to be obsolete too!
