Nobunaga's Ambition- Iron Triangle : Cannot Save

[gold_magistrate]

So whenever I save, it tells me it ran into an error. I have played 3 previous games; Yakuza 2, Devil Summoner 2, and Dynasty Warriors Gundam 2 and they all have had no problems saving into the memory card.

My specs are E8600 stock
8800GT, 2GB Ram