Help... Mega mindy doesn't work

Hi all
My daughter has a ds lit with a R4 card. The version she has is v1.18 and all of the games we have work just great.
Last i had download the Mega Mindy game and after i had installed it it ask me to make a sav.
When i did that (doing that always) the ds said that it couldnot read the file.
First i thought that something went wrong with the download so i download it again and then i checked with RAR but there was not a fault in it.
I am know out off knowledge
so please can someone help me?

This game probably has anti piracy on it. Try using the patcher to make it work http://www.gameboy-advance.net/nintendo_ds/ndspatcher.htm

Thnxs will try it hope that this is the clue!
In name of my daughter thanks a lot

Otherwise buy the damn game, the good and legal way.
Btw, u from Belgium? I am