MacBook 5,1 (Late 2008, Aluminium, 2.4GHz) When I put my MacBook to sleep, if it gets moved around a bit whilst it's sleeping, upon awakening the Wifi is turned off. It will not turn on either. Usually when this happens, I reboot straight away and get greeted with a "Wifi Not installed". I get it back by either a pram reset or reboot normally multiple times. I've put a clean lion install on, and the problem seemed to disappeared. I restored my working environment from my Time Capsule and the problem was back first time I slept the MacBook. So I figure its most likely something to do with software rather than hardware. I use an SSD, so I've just disabled the SMS sensor really hoping it's solvable by doing something like this, as I don't particularly want to have to start my OS X install from scratch. Anyone with any idea's on what else I could try?