I've been having this problem for quite a while now, I have some forwarders that stopped working; I end up on an Exception (DSI) occured! code dump screen and my Wii freezes. Everything works fine from HBC though. I've read some posts about forwarders that doesn't work with SDHC, but I have yet to invest in one of those, so at least that's not the problem. Recently I got the forwarder of WiiMC from HBB and it worked like a charm, then when I downloaded the installers for NES GX and GBA GX it required IOS61 (I think) the WiiMC forwarder no longer works, I also have an issue with well just about every forwarder I got except for those two emulators and USB Loader GX (the other forwarders namely HBB and Wadmanager have stopped working long before the WiiMC forwarder did though). I'm sorry I don't know what information is required for someone to try and help me, but I'd be very thankful for any help.