Let me start by saying the Macbook has never had any water damage. I Just bought and installed 2 gigs (2x1gig sticks) of new memory in my macbook 13" white. When I took the old memory cards out I saw what looked like corrosion on the dimm connectors. What it looks like is when you see a battery corrode in a devise, white flaky stuff kinda like baking powder. These were factory installed dimms. Obviously I cannot look at the macbook memory connector to see if there is a bigger problem down there without taking the computer further apart. has anybody seen this before. The computer works fine so I am mainly concered with long tern problems. thanks