I'm having a problem with one of my Dual Conversion Receivers... I'm using a Lynx 3D... I already returned it to Hitec a couple of months ago and after a month, it was returned to me untouched. Hitec mentioned that there was nothing wrong with it.

Here's what's happenning... I have six of these receivers and this is the only one that's acting weird.

1.) Lose control of the car (glitches) beyond 20ft. Tried it on 3 different cars and does the same thing. Everything works within 15~20ft.

2.) When I turn off the transmitter with the batteries still hook up, this receiver starts to get signal from all over the place, thus making the car really erratic... if I do the same thing with my other receivers, the car would just stop moving (I'm assuming this is the normal state). All my other receivers stop moving; this one just acts on its own.

Now, I don't know why Hitec returned it untouched, but it is obvious this receiver is problematic as I have 5 others to compare it to... what should I do?