So I just got a Mac..(iMac G3-400MHz--10GB HD) And I HAVE to upgrade the memory, since it is running Tiger and it only has 128 megs of memory on it! I went to the system profiler thing and it says that i have 2 - 64 meg ram sticks. But one of those ram sticks is ECC..and the other is non-ECC, i guess...since it doesnt say ECC. I just ordered RAM online..non-ECC. I wanted to keep one 64 meg of mem in it..should i keep the ECC or Non-Ecc RAM?