Saving Mario Kart DS

I have two R4's. Mario Kart DS (E), 0201, installed on both flashcards (Kingston 2 GB Micro SD). One does automatically save. The other not. Help! I downloaded them exactly the same way.When I press the CHEAT button in the entry screen, "Real-time on/off enable" is not ON, on one R4, and it is ON, on the other R4. If I click it on, it doesn't preserve that setting. Does this have to do with my problem?

You need to save the cheats you apply etc.

Thanks. I do save. I do "Save and exit" but it doesn't save. When I look again or restart is has the old settings. Other idea what could help?Thanks!

Reinstall the cheat database from http://cheats.gbatemp.net/