So I just got my new iMac last week, its my very first Mac, and I'm loving it. I'm loving it so much that I decided to buy some more RAM for it today....which turned out not to work in the machine for some reason, despite the fact that it was branded as working for the intel Mac (and had the same specs as the factory memory). Anyways, in the process of removing, attaching, removing and attaching the memory door on the bottom of the machine, I've now stripped the head on the screw. It isn't so stripped that I can't remove the door now, but all I can do is just start the screw, and then it just stops dead and the screwdriver just turns inside the screw head. Does anyone know what size/type of screw this is? I want to replace it with a flathead screw, something that is a lot harder to strip. Thanks.