Thank god it aint just me! Having gone through all the posts it seems this is a common problem? I had this problem a month ago, took the car to a tuning specialist who hooked the car up to his computor, pressed a few buttons then hey presto the boost was back, had the car rolling road tested, and was kicking out about 8-9psi, i asked what he done, he just re set it back to factory settings, all was good, untill it happend again the other day, no more boost again. ffs. Now thinking something more serious, panic setting in, but having read your post has put my mind at ease a little. Maybe something amiss with the ECU? Or possibly the fault lies within the diagnoses the other members have surgested, it would be interesting to know if and how you solve your problem, maybe its not as serious as im thinking. Good luck.