Recently my MBP (mid-09) has had issues with airport as it continually loses connection and I have to turn it off and on again in order for it to work again sometimes within seconds of doing so. I would opt for a fresh install but my dvd drive seems to be scratching the dvds and it rendered my Windows XP DVD useless when I tried to install that. So it wouldnt be ideal unless there is a method of doing so without using the dvd drive. I would go to an apple store but.... there arent any around! 
Any help would be tremendous
Any help would be tremendous