I have a Definity G3 PBX that works fine. I have a station, it was reported that the numbers he was dialing was showing up in the window and staying. The more numbers you dial out, the more the numbers keep piling up showing in the window. I was thinking it was the phone itself, so I swapped out the 7406+ for a brand new 8410D, and getting the same thing. I changed the cord running into the phone from the jack too....getting same results with numbers dialed accumulating in the window. Has anyone seen this before?