I have an 1120e IP set and we just got new 18 button Kem's and I programmed the set as Kem1 in the CLS and the add on works but I have the green screen and not the enhanced screen like my phone.I tried to change the screen contrast and it goes bright or dim but does'nt match the phone.Is there a enhanced version or am I doing somthing wrong.If I google them they match in the pic's.New to these!!!