I have the 15" Macbook Pro, late 2008, and I had no problems with it until now each time i connect or disconnect my earphones from the audio out jack, it lags to detect it, and when i click on the volume up and volume down in that moment, it also lags. Sometimes the volume up/down buttons doesn't even make the sound it always makes when raising or lowering the volume. It snaps out of the lag after about 20 seconds. It's really annoying after awhile... do you guys know any way to get this back to normal? Thanks 