ok, so i havn't played my fretless in about a week. so i walked up to it and played an A on the G string. no sound came out, just a buzz (this is unplugged). it seems as though the action is WAY too low, so when i play lower notes i do'nt even produce a sound. this bass is about a year old. the neck doesn't seem like its warped. here is the really weird part...i play normally with the bass and there is no sound. then i turn it like an upright, vertically, and there is some sound....whats going on???