unwanted light source in cockpit at night M2K-C

i don't seem to find a solution for my problem. There is a white light source in the cockpit (kind of like dome light for airliners) that seems to come from behind the seat and prevents my cockpit to be dark or dim during night operations. i,'ve tried unbinding all light commands from all of my devices.(bravo throttle, warthog stick, keyboard) with no success, the light source is still present. sometimes it only appears a few seconds after loading the flight and after i pan around the cockpit or use the mouse. it is not linked to landing lights or taxi lights as i have tried to turn those 2 off and it didn't make any difference.
anyone encountered this issue?