Here's some thoughts for you Gerry...
If having started to save a registration to your SD Card you switch the keyboard off too quickly thinking its done its saving job, that can have the effect of corrupting other earlier saved files if not all of them...
Another thought, if you were entering the realms of saving Audio files to your SD Card using SD Jukebox, that can cause a similarly disastrous effect on what's already saved on your SD Card - I try not to mix audio files with normal live play saved files any more as a result of this experience!!!
Rog

[This message has been edited by RMepstead (edited 03-05-2007).]