I have owned this range finder for 5 years since I bought it new. It has worked flawlessly ever since, and recently during this last bow season. I took my girlfriend out deer hunting and it will not range a damn thing. It will turn on and let me go through all the settings and change things around to make it work at long and close range but will not give me a number. It will even give me the angle at which I am pointing when TBR is on, but again no yardage. This range finder has been taken care of very well and I do not understand why this is happening. It says it has 2/3 of battery life left, but I bought a new battery anyways and then when I put the new battery in it won't even turn on, but it will turn on when I put the old battery in... I have a SE Washington mule deer hunt in 3 days. PLEASE help!