I installed the 8500 unit which Pioneer kindly gave me to replace the 8400 with the intermittent touchscreen, and yesterday the android kit was put on.  I got it to work, however the silly white dots need to be calibrated every time I use it, or am I doing something wrong?  It appears not to remember the settings.

 

It is very possible I am missing something in the settings, as this does not make any sense. Anyone got any ideas?