I just bought a 13 inch Macbook Pro, and when it is closed, the lid seems to be completely closed on the left side, and on the right side there is a very small gap between the base and the screen. I noticed that the black hing has no gap on the left side and the right side does have a gap, and maybe this is what is causing the uneven laying of it. I have read some places that this can cause problems, but other places that this is normal. Are most pros like this? Or should I be concerned. Thanks for the feedback.