AXE and EZDOK

I'm having a weird problem in Airbus X Exntended with EZDOK and TIR views in VC. All views work, and I think I did everything that was suggested in different threads on using EZDOK with AXE. My problem though is that everytime when I switch EZDOK views in VC the camera seriously trembles on switching to a new position, particularly to/from my TrackIR view (if you know what I mean). I have not seen anything like this in any other aircraft using EZDOK and TrackIR. Any idea what to try to fix this?

Thanks,

Dirk.