Trouble saving flights of the MD-11

The MD-11 Introduction Manual gives a good description of how to save a flight. I have read every post about saving flights but I'm still having problems. I'm working through the Advanced Tutorial and would like to save at for example< ready to push-back and just prior to decent. I save the flight in FSX but when it loads the MCDU data is missing. If I also try to save the panel state under: SAVE/NEW is receive the message: cannot create file.I saw one post that indicated that folders admin permissions would be worth exploring so I've done that with out success.One other small item. I keep getting the message: cdu2 menu request.All help is appreciated.Bill Buxton