Hi. I need some assistance. I searched, but couldn't find any clear explanation or advice. I have a Geddy Lee Jazz Bass (which is a bolt on neck, and strung w/Fender.45-.110's). I love the bass, it plays great, and stays in tune. I have one problem/issue though. While putting it in it's case the other day I noticed something. I laid it down into the case, and while putting it down I pushed down very lightly near the headstock/nut. When I did this the neck seemed to straighten slightly and all 4 strings got tighter and touched all of the frets (from headstock to last fret which is over the body). It struck me as odd, so I did it again. Pressed down lightly, and the strings went down to the fret board. It doesn't take much of an effort to push down for this to happen. I had never noticed this on any other bass i've owned, but I never looked for it either. I haven't touched the Truss Rod on this bass, as it was set up perfectly when I received it, and as I said - it plays great - really great. I was just wondering if this is something that is not normal, and might be a problem down the road. Would tightening the neck fix this problem (if it is a problem)? Or should I not worry? (* I've never tightened a neck before - if I need to, is it easy?) Appreciate any advice/input. Thanks!