My mac has had this problem since I guess the end of last year (2010), and Apple just recently released a fix for this (Thank you Ahmer Sultan for telling me about it).
I was all like this is going to cost alot, since I got in touch with the people at Media Center, and they told me this bottom case costs around PKR 10,000/- I was like WTF? But thankfully, Apple takes responsibility for this and will be replacing it for me hopefully this Friday.
I recommend you all who have Macbooks, even those who don’t have a damaged one to visit this link, so that incase your Mac get’s the same problem, you’ll know how to get it fixed Also if you paid to get this fixed recently, you’re in for a refund.
On the other hand, I m really looking forward to Apple Mac OSX Lion, yes I m still not too crazy about iCloud, as for the iOS5.. as long as I won’t be able to use it… I wouldn’t say a word, I need to save some cash to get iphone 4 maybe.