Why is my TT Premier reporting an error in saving the file and then shutting down?

I purchased a TT CD from Amazon. While trying to do my taxes, the program arbitrarily warns that it will need to shut down and freezes. I then try to save the file but receive message that this can't be done and I may lose data! There is an error code which begins, I think, with 57......but the shut-down happens so quickly that I can't read it. 

       Thus, I am constantly losing or having to confirm data entered. At this rate, it seems that I will never finish my taxes! I have tried periodically going online to up-date the program which supposedly saves my file to mitigate further damage. 

     I appreciate in advance any assistance to stop this irritating sequence of events.