Like most people, i encountered an issue when i tried to play GTA: Chinatown wars on the ds. So i searched on yahoo answers to see where i could get it to work. I got a link to a patch. The patch i got for my R4 was from: http://r4ds.cn/download/r4_v1.18_kernel.... I did all the right things. Replaced the files with the downloaded ones and thought i had done everything right. I go to test it out, but when my ds starts it says 'Loading' with a black screen...nothing else. When i was replacing the files with the new ones, i was stupid enough to not save the files before replacing them..so i cant just swap them back with what i had. I can still access all my files for the ds on the computer..and i know its the memory card because i tried my memory card on another R4 unit and got a similar result. Can anyone help me fix this?