Kodi Video Calibration to perform at each reboot

[aleroot]

Hi,
I'm experiencing a strange problem that I can't reproduce with OpenELEC, and it is really annoying .
Each time that i reboot xbian I have to recalibrate the video output, otherwise I have the output of the system bigger size than the television screen .

Is there a way to solve ?

The problem is only related to xbian since if I switch SD card on my Raspberry Pi2 and put inside OpenELEC 5.0.6 I have no problem at all ...