The other day I reinstalled os x and re-downloaded all of the updates. since then my wireless randomly drops out and says click here for network diagnostics. I do this and it has it set on ethernet cable but i previously set it on airport. why is it switching itself to ethernet and losing the connection?? it wasnt doing this before the reinstall....my new mbp has froze a couple of times and now this airport issue, im starting to worry even more bout what else could happen. i leave for school on friday and theres no apple store around here or my school