I bought an R4 sdhc Upgrade Revolution (r4i-sdhc.com) with a 4gb card. My problem has only been with a couple games. Ive put about 3 hours into Final Fantasy Tactics A2, Final Fantasy Revenant Wings and Mario vs Donkey Kong. After playing each of them a couple times I suddenly couldn't load the save files. My firmware for the card is the latest update from the site(1.32b). Every other game has been fine for loading saves so far. Im just wondering if there is a solution to this problem. Will using Wood R4 or something similar fix this? Any info is much appreciated.