I have done R4's before for the kids and they have always worked and have not had that many problems with them. But recently i bought new R4 SDHC cards from R4i.co.uk and downloaded their software to run the cards and went through all the process of putting the software and games on and at first they all worked fine, but now they will not go on and freeze just as it's loaded the R4 card screen up! I can't figure out what is up with them, I'm using standard sd cards and the correct software from the site but can only think It's a software issue! Can anyone recommend what to do or any reliable free or shareware sites i can try different software from, the kids are driving me mad and i feel a bit crap not be able to fix them! Any help would be appreciated, thanks!