Q: Each time I install an OS X update the OS switches to US keyboard and I have a hard time to login. This is a real nuisance.

I have no question just a comment. With the last two OS X updates the keyboard was switched to US keyboard layout. My MacPro is equipped with a Swiss keyboard. I am therefore unable to logon after the installation is completed. I assume many users with international keyboards experience the same problem. I hope the next OS X update this problem is solved. Cheers Jamopia