I have a macbook air in my household (it is not my laptop, but i bought it for my wife) and I am having a couple of issues. 1) occasionally, hard to reproduce, it looks like some of the LEDs at the bottom of the screen are going out. they alternate in a very specific dark light pattern. This started up a couple weeks ago 2) now the keyboard has now become unusable as the number keys are permanently shifted into !@#$% instead of 12345. The keys are not sticky or anything, and there does not appear to be any liquid damage, but then again, i am not the primary user of this laptop so who really knows. Does any of this sound like something covered under warranty? Are there any water damage indicators i can check to see if damage was caused by this?