This problem is very strange. I have replaced the CPU in the car. When you are driving in Drive suddenly the display will start flashing with the Drive sign with a line through it. I can go into 3rd gear and it drives and reacts fine. I can turn off the motor and restart and sometimes the problem goes away. Sometimes when I am driving I can shift into 3rd then drive a while then shift to Drive and its ok. very Random problem. Any Ideas? Has anyone heard of this before?