Icons not positioned correctly

[Venando-a]

Hi, I am running a two monitor configuration and although the laptop display is set to be the monitor for desktop icons that setting is ignored and icons all go to the left screen (like with the annoying ubuntu standard)

Also, the laptop screen has an "X offset (from left)" set at 1920 which I cannot change although screen width is only 1366... and icons are all pushed to the rightmost corner if only a single screen is connected and iconic is executed.