I just changed my Windows password and discovered something really, really odd.
I can lock the screen and then unlock it using the new password without problem.
I can also reboot the computer and log on successfully.
But... if I put the computer into standby and then wake it up again, I can't log in.
I began to question my sanity... did I change the password to what I thought I had? Perhaps I didn't change it at all?!
Having to do a hard reboot to get back into my computer whenever it goes into Standby is not a particularly useful characteristic of a portable computer.
What was going on?!
And then a possibility dawned on me... I had included a punctuation mark in my new password (the double-speech-mark symbol, ").
Hmmm.... what if something really weird was going on with keyboard mapping?
In the UK, the " symbol is accessed by pressing Shift-2 on the keyboard. But on US keyboards, you have to press Shift and one of the buttons near the Enter key (the key marked @ on UK keyboards).
So I gave it a try... and guess what...? It worked!
So, I have to use Shift-2 when logging on from cold and after locking the screen but need to use Shift-@ if I've returned from standby.
How mind-bogglingly odd.
(And yes... I have changed my password to something new now)