I have an original R4 SDHC (4gb - Kingston) cartridge which used to work fine, until I turned on my DS today. The DS freezes on the screen where you select your roms (basically, I can't move the marker nor start any roms because it's frozen). I have v1.071b. The multimedia and config options work fine, although there's nothing much I can do there. I've tried to reformat the storage,, it does not however fix the freezing issue. I've also tried to re-download the software for the R4 (moonshell2 or whatever it's called), but this does not solve the freezing either Anyone who knows why? Thanks in advance!