Yea well age has a lot to do with it also.
I never bothered to calibrate mine. I don't need the indicator on the screen, so.. I doubt this has anything to do with your issue, but you should take and post screenshots so we see what you see. Check the orientation on the mount against the little (lame) illustration in the Livescope instructions.
"Alive without breath, as cold as death; never thirsty, ever drinking, all in mail never clinking."