My apologies Mouser - it would appear that that my problem lies somewhere in a dark corner of my PC! Once sorted i like General MacArthur shall return to install S.C. Thank you for your assistance.

        I installed S.C earlier this week & am still discovering its many attributes. While flightsimming [Microsoft Flight Simulator 2004] i tried to select the aircraft's GPS [set up by clicking on Shift+3]  only to repeatedly find that the program shuts down instantly. I haven't changed any of the S.C defaults & would appreciate any suggestions as to fixing my problem. PS - Screenshot Captor works perfectly when taking full size screenshots with the Printscreen key only. I have never had this problem over several years of using Faststone Capture.