Ok, so I just upgraded my MacBook 2.0 GHz Core 2 Duo (purchased Dec 06) from 1 GB RAM to 2 GB RAM. Insanely easy to do. But when I went to put the battery back in, it won't go in smoothly. I can feel the edges poking out. It wasn't like that before. Also, in the process these two little flat white circles fell out from somewhere. I don't know if the two are related or not. Any tricks to fix this?