Our software does nothing to move the icons around. We tell Windows we are adding or removing displays and leave it to the OS to move the icons around. This has been a known problem and there were a number of 3rd party apps that would try and restore the icon permissions.
This thread on Toms Hardware might help and has a suggestion of changing the personalisation settings:
http://www.tomshardware.co.uk/forum/...p-icons-moving
Wim