When I click on any menu title, a blank drop-down appears. How can I fix this?

The issue may be that the user does not have Windows permissions to the Themes folder. The user should have permissions to:

C:\Documents and Settings\All Users\Documents\Geomagic\Geomagic Product*

*Product may be either Studio or Qualify

Please also see Why do all of the menus in the application look blank until I run my cursor over them? 

If the problem remains after this, please submit a ticket to Geomagic Technical Support.