I bought an R4i SDHC (Red box, website on the box is www.r4i-sdhc.com, has the yellow 1.4.4 label on it). I downloaded the "R4i V1.64b English.zip" file from that site, put the contents on a 4GB Micro SD. When I click on the sword icon labelled "Deep Labyrinth Digital Bros", it starts the R4 menu fine. I can see a list of games when I click on the "games" button. The problem I'm having is when I try to run a game (or the Moon Shell 2 app), it says errcode=81, errcode=83 "SD card fragment error! Backup SD card, then perform full format with Panasonic SD Formatter". So I got that SD formatter from the r4i-sdhc website, formatted the card, put the contents of the zip back on, and I get the same problem. I've tried 3 different SD cards, and actually 3 of the R4i cards too (I have 3 DSi's in the house and needed 3 of them). They all do the exact same thing. I've tried formatting the sd card with windows, with varying block sizes, and with all available options in the SD Formatter app. Any ideas?