X64 version does nothing after installation

After I installed the latest version on a Win 7 x64 laptop the program will start but not allow me to do anything.  None of the menu buttons, command buttons work - all I get is a green box which constantly changes shape regardless of where the mouse is placed.  The program never requested activation/registration info either.  I have experienced this problem with the previous two releases but not the original which worked flawlessly.

Its a great little program when it worked but is completely useless now.

Can anbody offer any useful suggestions?