well when i first got my ds and my r4 i have the sdhc version btw it would load but have no background pic and just a purple screen with boxes that where blank. when this first occured i searched and searched but nothing and i foudn other users with this problem but when i was fidling about with my bro files that did work and now ive managed to get the files to work so i thought id share them with you guys

hope i helped heres the link : http://www.2shared.com/file/6240287/...creen_fix.html

( download is right at bottom of page btw )