Bought an R4i-SDHC from MemoryBits before I had done the research and found out what a mess the whole R4 thing is! If I format the card (any card from a selection of 1Gb, 2G SDHc and 8GB SDHC) and install the firmware from www.r4i-sdhc.com it will load and work fine for a short time. At some point I will go to switch it on and it hangs on 'Loading'. I can't fathom what circumstance causes this. I also note a few files get added to the root of the card such as SWRESET and DEMON0.SYS that are not from the virgin firmware. If I reformat and re-install all is fine again. Similarly if I copy all the files off and then back on it will sometimes be fine. I'm going to look at an M3i but in the meantime is there anything else I can try before I smash the damn thing to bits with a hammer!