I added a password to NAV so a password is needed to enter the settings, but it seems like there is some slowness in the GUI so if i type the password too fast it's not accepted and NAV claim i used the incorrect password. I know that i type the correct passord and never had this problem using NAV 2011 and also use the same passord for other apps as well without this problem. So this is not a problem with my keyboard, caps lock or some other simple mistake. It's pretty annoying. My password contains numbers and letters (both uppercase and lowercase) only if that should be relevant.
I use Windows 7 Enterprise x64 and NAV 2012. The computer is a Lenovo Thinkpad W520 with a Quad Core CPU, 16gb RAM and a Intel 510 SSD so there should not be a performance problem because of the hardware. Also i don't have any such issues with any other application and neither when i used NAV 2011.
-gan