I have a NDS with an R4i card (the one in the white box) which I've been using for years, yesterday I managed to delete some software off it by accident which meant that all I got was a black loading screen when turning it on, after hunting down the current software and reinstalling it many of my games now do not work. Whilst they appear in the list of games, after selecting them I am greeted with another black or white screen. I have lots count of the amount of different versions of software I have tried. Most appear to not work - resulting in the black screen. I have only found one version (Kernel 1.56 from r4ultra.com) that allows the console to turn on properly but then I have games that worked perfectly before no longer working. I also have the problem where by some of the software is downloaded as an .exe file and I am on a mac so I am unable to extract them. I have tried the R4i upgrade in the sticky. The R4i however, wont open and the R4DS downloads as an .exe file. Any help would be greatly appreciated.