I'm curious if a cracked screen is covered under warranty by Apple? There are bright patches on the screen against dark patches and it just looks terrible.
Depending on the type of crack you are referring to it may or may not be covered by your Apple Warranty. Any signs of misuse or abuse will immediately void your warranty and result in a substantial out of pocket cost in relation to your MacBook LCD.
The best way to determine if your screen is warranty-able is to visit your [Local Apple Retail Location's Genius Bar|http://www.apple.com/retail] and consult a Genius as to the status of your screen.
Depending on the type of crack you are referring to it may or may not be covered by your Apple Warranty. Any signs of misuse or abuse will immediately void your warranty and result in a substantial out of pocket cost in relation to your MacBook LCD.
The best way to determine if your screen is warranty-able is to visit your [Local Apple Retail Location's Genius Bar|http://www.apple.com/retail] and consult a Genius as to the status of your screen.
Um, I know for a fact I didn't drop it. I did however clean it this morning, that's it. I've read other posts of people having a hard time with Apple -- I seriously don't want to pony up $800 for a new screen!
Thanks for the !http://a772.g.akamai.net/7/772/51/20070826/discussions.apple.com/images/answer -helpful-16x16.gif! Helpful status!
Contrary to what most people think, Apple isn't out to give anyone a hard time... When it comes to damaged hardware it is always a matter of perception as to how such damage could occur and Apple also must consider that while a select few users may not be abusing their equipment, many with similar damage have indeed abused their systems.
Where is the crack located? Around the edges of the screen or near the center? 
Um, it's not a single crack really. It's located around the bottom up to the right and left sides of the screen. And there brightened and dark blotches on the screen. It's kind of hard to imagine and unfortunately, I can't take any pictures. I will obviously take it to the store, however, I need to get a semi-diagnosis online. (I am trying to get quotes from Computer System Centre & MacService)
If the cracks are near the base of the screen I'd say you have a case for stress fractures given that is one area which has a lot of strain put on it during opening/closing in normal operation.
A lot of what will help or hurt you is attitude when you speak to the Genius also, if you treat them well 90% of them will treat you well in return, people that go in with preconceived notions will often walk out unhappy that their problem wasn't resolved.
As for quotes on replacement products, keep in mind that 3rd party will always be cheaper than Apple. For example, [check out this site|http://techrestore.com/xcart/home.php?cat=273] which lists the MacBook Screen at around $400 with replacement service. (Please note that the site linked here is not endorsed, recommended, or otherwise suggested by Apple and is only provided as reference.)
The cracks are pretty much in a 'U' shape, so I don't know what that would be considered. But I definitely thank you for your time and help (including the advice about speaking to the Genius) -- as far as I'm concerned, it is left up to the guys at the Apple store.
Thanks for the !http://a772.g.akamai.net/7/772/51/20070826/discussions.apple.com/images/answer -correct-24x24.gif! Solved status, solving an issue is something I always thrive to do!
Good luck with the Apple Store, let us know how it goes. 🙂 
Okay, well. I went to the store and turns out it isn't a crack. It was serious condensation in the LCD display thanks to Windex and Ammonia! Unfortunately, the repair will cost $800 and NOT covered under warranty. I got a quote from CSC which has a price slightly cheaper. Still, this repair will not be cheap -- and I certainly will not purchase a new computer!
Ouch. Just for future reference, I only clean my Apple Equipment with [iKlear Products|http://store.apple.com/1-800-MY-APPLE/WebObjects/AppleStore.woa/wa/RSL ID?find=iKlear] which Apple sells from the Online Store and all Retail Locations.
I'm experiencing a similar issue. I have a large crack originating approximately 2/3 of the way up the screen and just a centimeter from the the left edge. The crack goes from this spot to nearly the bottom right corner in a waving fashion.
When the crack initially appeared, it was hardly noticeable and there was no discoloration associated with it (Black spots are beginning to appear along the crak after a few days.) I only noticed it when the screen shook lightly (the area to either side would slightly discolor.) When you feel the screen, there is no physical damage (you can't feel the crack on the surface. Additionally, there is no damage to the external surface of the case.
I have no clue how this crack happened; the laptop was never dropped and the screen was never hit. Does this sound like it could be a stress fracture or something else that would be covered under warranty (its less than a year old -- 4 months old actually)? My other question is will the crack continue to get worse and make the laptop unusable (right now its simply annoying)? Thanks for your input and sorry for the long post.
It can and it can't. If it is a crack, with black spots appearing, it may get worse -- whereas with my problem, it was simply condensation (by the way, a majority of it has dissipated!). Unfortunately, with any sort of crack, I doubt Apple would cover it under warranty simply because... it has to be seen as some sort of hardware malfunction on the company's end, not user.
If the problem continues to persist, do visit the Genius bar located near you and just ask them if it is. Display replacements cost up to $800 (CDN), but if you're living in the US, you can simply purchase the screen from Macservice in the US and get it for approximately $350 (which is relatively CHEAPER than anything else you can find).