I don't know what Big Fish may have changed in ROTS but the original game had bugs, both with the operating system, QuickTime, and game play. There are ROTS updates but they may not be applicable to the Big Fish copy.
Not knowing what system you are trying to run the game with, it is hard to make suggestions. You could try setting QuickTime to Safe Mode for audio and video, assuming the Big Fish copy requires QuickTime.