Main FSX window menu in a strange position after a flight

Hi captains,I have just performed a clean installation of FSX (standard ed.), plus adding only PMDG 737NGX (sp1 and -6700 expansion). So it could be called like plain vanilla configuration. No tweaks, aircraft addons, airport addons and so installed.Well, I have a strange position of the FSX window menu after a flight (at the moment only with PMDG 737NGX). When this window comes up I cannot do anything, except pressing ESC button to quit FSX. After that it leads to a FSX crash.Before formatting my HDD where FSX is running I had not any issue.What would you do to fix the problem?Thanks bye.