Save Game - Decrypt failed

[mot-K]

Hey, I've played FFIX a few years ago on my laptop and now I want to play the game on my PC. I've copied my old save file to the correct location ("AppData\LocalLow\SquareEnix\FINAL FANTASY IX\Steam\EncryptedSavedData").

But when I try to load the save game, an error message appears, which says "Decrypt failed."

Here you can find a screenshot of the error message: http://fk-web.de/Unbenannt.jpg

Has someone any advice?

Thanks in advance!