Help!!! My EDGE Is Error

please help me solve my problem....
my ds is error,the error is like this:
- when i playing game(all game) sudenly my ds is hang and when i want to play again it stop in loading state
- when i try to open the media(moonshell) it stop in loading too
- when i open the option it's work but... when i change the option it's hang againplease help me my ds is in full battery,my edge is the newest version
and my problem start when i play TouhouDS

try playing other games.
If it still hangs, you have to "clean" your ds.
in a sense,
make sure that your games are put into seperate folders,
and stuff like that.
Tendency is, when games are left as they are and not put into folders, everything gets mixed up and it really hangs.If you try another game and its doesnt hang,
then it's the TouhouDS fault.
try re-downloading it.Try re-downloading your moonshell.

*yawn* That happened to many of my classmates... Ok, few... Alright, alright! only one got this problem in my class.There are many ways your edge isn't working:
1. Your Micro SD has been corrupted by something. buy a new micro SD card
2. Something was not right while downloading it. re-download it.
3. Maybe you're messing up some important files like the EDGE.dat or something.You gotta Sort the files (like DSaddictforever said)For example:
Make a folder named as "EDGE" and put the .nds roms and the cheat.dat files there. Place the "EDGE.dat" and the "moonshell" folder outside the "EDGE" folder. and you're done!

okay thanks for the infoi think my EDGE is corrupted (cause i can't format it)anyway can i use 4GB microSD for EDGE?

Yes, EDGE is SDHC compatible.