I have a Vexilar FL-12 which I purchased about 8 or so years ago. Last time out my son went to use it after returning from a trip to northern Iowa and the LCD screen colors were spinning when turned on. After turning it off and trying again there were no colors present. Called Vexilar and the tech said it sounded like a battery issue; so I put a freshly charged battery on it and took it out this past weekend. It immediately began spinning again with colors present. Wondering if anyone has had this issue also, can offer a fix or if had one fixed wondering approximate cost and the problem that was found.