LM17 QIANA with KDE - two monitors -- solved
Installing KDE in the new LM17 the system settings didn't SEE or allow reconfiguration of second monitor.
Simple solution -- sudo apt-get install kscreen
For some reason this was missing with the kde-full that I installed.
Otherwise LM17 with KDE works fine (except 1 item not important - KONQUEROR browser users - can't get video to play -- just blank screen - plugins don't seem to work -BBC iPLAYER etc - but FF is OK as a browser instead - that works fine)