need help with mgm 160/18

hey everyone
i just bought a esc and for some reason when it first starts it start going in reverse even when its programed for one way only and the trigger is in neutral. It will do the same thing at random times also, but only in within the first minute or so. Then it goes away. does anyone know whats wrong? Im guessing its a bad connection but i dont know. Also the esc it Y-ed into the radio with my break servo.