I'm not sure...but if your problem is related with accessing to Virtual Machine, you must check the keyboard layout. For example, if you are from Spain, and want to type "Pass@word1", the "@" symbol is different than with the US keyboard layout. (The NAV 2013 W1 VM comes with US layout).
Try using "shift+2" instead "Alt Gr+2". (I'm not sure if you know what I mean).
Good luck!!