I'm running Finale 2014.5 on  two machines--one running Windows 7, one running Windows 10. On the Windows 7 machine dropdowns--Tools menus for instance--open their submenus to the right, towards the centre of the screen. 

On the Windows 10 machine they usually open to the left, towards the margin.  Being right-handed I find it uncomfortable and counterintuitive to chase them that way.

Why is this happening, and can I fix it?  Any help would be very welcome.

David