680 flimmering in display when hot

Hey ;o)

I have a 2014 TRX680 and after 30-40 minutes of hard Work, pulling a sickle mower or my Kunz Rough Cutter, it starts doing weird stuff:

The green light for 4*4 blinks
The gear indicator doesn´t show which gear I´m in
The ESP indicator blinks
When in gear it pulls, normally it sits still until you push the throttle, but it will not hold still in either reverse or drive.
The speedometer shows all kind of numbers, it´s flimmering between 0 and 50 kmt/h.
Sometimes when I change from neutral to forward or reverse it stalls.
All in all the hole display acts up and I have to wait for it to cool of.

This continues for 3-7 minutes until it cools down, and then it goes on like nothing ever happened 🙁

I have tried to attach a video, but can´t…. if interested I can send it to a mail.

Any ideas?????

I looked through most off the post in here but I can´t find anything like this problem.

Your help will be greatly appreciated 🙂

Regards
Janus