Once again I fell into the trap of involving something from the future that would not have been possible in the early seventies. This time it was an Apple Mac Laptop. I have madfe some sort of recvovery however by introducing the secret super duper laptop which General Argon gave me on my return. It is not perfect but perhaps at least can be regarded as possible within the story. I also changed a senence in the doctors information on Henry's condition when I was at it any way. Thanks again for your comments and encouragement.