I just got this machine about two weeks ago. As soon as I got it, I replaced the HD with a 250GB HD. I was extremely careful, and put the machine back tighter than anyone who I've ever had do HD replacements on past machines.
Today though, I noticed that the section of the case directly under the HD, right next to the battery, is slightly raised (warped) higher than the battery. When I mean slight, I mean 1/16, or even 1/32 of an inch. And its flexible. I can put a little pressure on it and it immediately goes flush with the battery. On the plus side, it's not affecting the actual function of the machine. It appears to be purely cosmetic.
Anyone else have this?