No its not an overheating problem,....The motors are 24v gold,....The pcb is cold,but to be safe I fitted a larg heat sink with heat conductive paste on to all 4 big black thingies(tech talk)and that stays cold as well.The only thing that gets warm is the little components on top of the pcb,when I say warm i mean just above cold.The fan whirlpool fitted was a tiny computer fan about 30mm body not a big thing,but it must be just enough.... Another clue!.. When i first tryed the scorpion i had it configured with the battery eliminater link in place so i did not need a receiver battery.This caused the same fault to happen but a lot quicker..flashing light within a minute.So i cut the link and fitted a battery.problem solved,robot works fine or so i thaught,as long as you switch on the receiver last minute just before the battle you will make it through without it freezing.

any ideas?:sad: