First of all I want to thank every one for all the awesome postings on the At pro. Am new at this and reading all your awesome hunts made it easy for me to decide to get an At pro. I have had mine about 5 months now and love it. no gold yet lot of clad some good 925 rings and a few silver coins. my problem is a few weeks ago I noticed my screen will turn color sometimes a light blue tint not sure why. Has anyone seen this before?.