R4 Saves Broken?

I have an R4, with all the latest updates, and have had for about 2 months. I've downloaded about 20 games, with a max of 8 games at one time. I decided to add 6 more games, and winrared them and all you have to do to get them to work, but when accesing them from the games menu, it says "Could not find sav file. Create One? A: Yes B: Cancel X: Ignore" When I press "A" it freezes, and when I press "X" the game works for a short period of time before going into a blank white screen. Games I downloaded prior to the wave of 6 games work fine like Mario Kart and Tetris DS. I'm stuck!!! ??? ??? ??? ??? ???

Have you updated to the latest firmware? Try backing up and format your MicroSD.

What do you mean by "backing up and format your microSD"??? Yes, I have the latest firmware.

Backup meaning copy all your data somewhere so you can restore it later, and format by wiping everything. Right click on your removable drive in My Computer and go Format etc.