Help! Actuator making NOISEE

hey guys,
i need because i'm @ wits end.
arduino uno running 2 actuators (dc motor , servo motor) controlled sensors.

i can manipulate flex sensor drive servo motor without cross-talk or noise issues.
however, when manipulate soft pot drive dc motor, drives dc motor fine causes mess on rest of board. (ex - causing servo go haywire)

i first need isolate whether it's coding error, or breadboard/wiring error.  understand can't on wiring have thousand times , feel 98% confident it's correct.

i'm hoping nice enough @ code , tell me if that's problem!

how driving motor (thinks - using motor shield pwm , servo)

mark

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