neo key + mem manager

I have the neo key for ps2, and I also have a 16mb memory card. For this card to work you have to put in a memory manager cd first, then the game. For some reason it doesn't seem to work, and I think that my mod chip is the problem. Does anyone else know what im talking about or have a solution?

[Arakon]

well, 2 things.. is the cd of the card an import? i.e. you are using an US card on a PAL ps2 or something.

if not, try different games.. that card is well known to not work with all games. and if I'm not mistaken, you have to plug an original 8 MB sony card into it too.