break lights won't turn off

[toyosuprastl]

i've asked around, had break light switches replaced, the little box in the back replaced, ground wires replaced, all types of things

and the break lights on the car just won't turn off. you start the car, and they staty on, lit (high intensity), so when ur driving it's showing as if u were breaking, u can turn the car off, and the lights still remain lit, unless you unplug them, it's the break lights btw, can any1 help me out?

btw it's a 91