A320 B52.3.5 n1 display problem

Hello, this is my first post, apologies if its incorrect in any way, sorry if I have posted this twice.I am building an a320 sim using fds modules. I have been using the excellent jeehell software for a significant while now. Everything was fine until the no2 eng N1 display now shows 4 green arcs all the time, I have re installed the software and have made no changes to any device on my pc, any thoughts.I have a seperate pc as the server, and seperate pc for the overhead and eng/sd displays.