hello all, i recently got a hold of a used macbook air, but after using it for about a month, i've noticed a few problems that i was hoping to get some light on. i believe this is part of the first generation of MBAs. 1) i believe this is common, but sometimes (usually after transporting the laptop around in my bag) after opening the MBA and attempting to wake from sleep, the computer will wake just fine (will connect to wifi and show correct battery life remaining as well as time in the task corner), but the keyboard and mouse will not respond. the power button responds, however, so pressing it will bring up the prompt for a shutdown, but i can't do anything beyond that as the mouse and keyboard and unresponsive. 2) the keyboard backlight is finicky. usually, it will flicker oddly when it should be on and will go on a spasm-fringing light show when i'm typing sometimes. usually, the backlight will stay off in low light conditions when it should be on, until i press down on the keyboard or center body of the laptop with some force. Pushing down on the latop will actually make the lights wake up and work how they are supposed to. again, i would just like to reiterate that this is not an issue of being in a dark or light setting where the auto feature of the backlight will turn on according to ambient light; this is a situation where even in dark settings when the light should be on, it will not until i press firmly down on the body of the laptop. 3) also, closing the laptop or selecting sleep through the power button sometimes puts the laptop to sleep for only about 30 seconds and then the computer will go through a period of waking and sleeping about every 15 seconds. After repeating this about 4 times, it'll stay asleep. I can tell the macbook is indeed awake when closed as the apple logo light on the back of the monitor glows. well, at this point, i think i need to suck it up and buy some applecare. any words of wisdom will be much appreciated! thanks so much.