I just installed Windows 7 Professional 64 bit and Ofiice 2013 64 bit on my Mac Book Pro Retina host system using parallels build 9.0.24237 When I wanted to type my email adress during the registration process, I could not create the "@" symbol. Nothing happens, when I use the typical combination on my Mac host system. Everything is normal, when I type "@" in "notes" or "word pad". What can I do?