EDGE DS help!

Every time I open my DS (which has EDGE) a message shows up
"EDGE.DAT tidak menemukan!"
I know that this has been asked many times but here is the catch:
The EDGE.DAT is already in the root of my SD.
I have cleaned the EDGE many times.
My SD card works fine.
I already have reformatted my SD.
I have downloaded the latest firmware already (EDGE OS v1.6)
But,alas, nothing!
Please help! :'(

when u downlload EDGE OS v1.6 get the whole folder that says EDGE and paste that in the root, not just EDGE.DAt

I did that already....
nothing happened...
anyway, thanks for trying :)

easy unpack the rar with the OS in the sd than must it works