Sorry to disappoint but I am not that dumb. Yes, Screenshot Captor is alive and well and running in the system tray. If I use the capture bar everything works as expected. The only problem I have found so far is that the PrtSc key does nothing. Thanks for the reply.
I am a new user running Win 7 Pro 64 bit on a Lenovo W530 laptop. Neither PrtSc or Alt+PrtSc causes the screen to be captured. I have also tried Fn+PrtSc and Fn+Alt+PrtSc. Any suggestions would be most welcome.