Well ok, finaly, after more than 3 years of searching I found the problem with my cab-monitor. As I was always using the cab with the ultimarc j-pac I never thought about the fact that this could be the problem.
Last weekend, I started up the cab and it seems something was wrong with the buttons, so I've checked them and I found out some of them were sticking. No problem, just chanched them and everything was ok again. But as I was working on the buttons I've had that crazy idea of changing the J-pac with a new one, I've bought this one some 5 years ago as secondhand so don't ask how old it is.
Today DHL delivered my new J-pac and I installed it into my cab and guess what: Nice bright colors, no more greenish, it just needed some tweeking to get it all nice and neat.
Well that's it, I'm so glad I was a little lazy and stingy to change the monitor and not buy a new one, got the parts changed you guys had told me to a few years back.
Let the games continue
