i'm seriously on the verge of tears! i bought a new black macbook 3 months ago, i love it!! i own an iMac which i've had for 3 years with no problems. anyway, i opened my macbook today and used it for an hour, put it to sleep, then come back to use it and notice what appears to be a long strand of hair. at this point i'm not even thinking it could be a crack since i've never mishandled the notebook in any way, shape or form. everytime i would flip the screen to put the computer to sleep and opened it back again, the line kept getting worse. i made an appointment at my local store and got the 'any cracks are not covered under warranty' story. can i just tell you how careful i am with my apple products? i've hardly moved this baby around since i've owned it. i seriously have no idea what could've caused the crack and now i'm pretty much s.o.l. unless i want to shell out around $700. i am beyond frustrated and have read of so many other people with the same problem. has anyone had a similar experience?