Ray,

It is very possible that you just have a corrupted SD Card. Try a new one first and then if it works glue the drive door shut (joke!).

If I were you in the circumstances I think I would go for your niece's KN7000. There are many people looking for KN7000 in your neck of the woods who would buy a KN7000 with the SD Card not working. After all, you can still load using the floppy disk. SO you will still get good value for it.

Actually, if I were you I would just keep both of them but I'm a bit of a hoarder lol.
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