I just added two sticks of 256 mb PC 2700U DDR RAM to my computer that used to have one stick of 512 PC 2700 DDR RAM. But the computer doesn't see the new sticks and says it's still using 512. Or maybe it only sees the new sticks and not the old one, I don't know. Does anybody know if it's possible for me to use the full 1 GB? I'm not sure if PC2700U is the same as PC2700..... and old post from another forum seemed to suggest so, I so tried it. :\