I have an R4 Upgrade - Revolution for DS card from www.r4i-sdhc.com. I also have an EZ-Flash V 3in1 cart. The GBA feature is working great, but the two DS games I've tried (Trackmania DS and Diddy Kong Racing) have not been able to find the rumble pack, or have not been able to use it. Any advice on how to fix this? Do I need to patch the .nds files? Thanks!