[mhl0125]

I had the transmission rebuilt about 800 miles ago and the Duty C Solenoid replaced as well with a new one. Now when I pull up to a red light and stop, in about 3 or 4 seconds, the transmission seems to catch up with the idle while I am in "drive". I can feel a very slight forward jerk in the car. My foot is on the brake so nothing happens. It just seems the transmission winds down several seconds after I stop. Any ideas on this one?? I don't know if this is serious enought to take my to my trans. shop.