Hi !!! I just recently received my MK-T ukulele today.. it looks and plays great but when i hit the 7th and 8th fret of my E and A string, the sound is exactly the same... i put it on side ways to see if the 8th fret is somehow problematic and i think i see that it has a small hump but it could be my imagination ! what should i do ?!!? i really want to start playing the ukulele and it bothers me so much that it has this problem ! i even just recently ordered a set of aquila strings for it....