I recently got Z120 Bt installed in my ML320 and for the first few days my phone palm pre would connect automatically and everything was fine and then one fine day it started disconnecting and now it doesn't connect until chosen from either the phone or unit to connect, only to disconnect in few minutes. I have reset my palm pre to factory and don't know what the trouble is? Would like it to go back to when we started .

Also have seen that certain settings in z120bt go back to defualt even after changing them , for eg. in map settings the mute is set to tel/vr and I change it to guide/tel/vr and come back to restart the car and it goes back to tel/vr, Similarly the VR catalog doesn't turn off even after turning it off as my ipod stays connected and I don't need it to do cataloging everytime. Mute button also doesn't stay at all and goes back to 20db with every start.

Any help or guidance greatly appreciated. thanks