The "K" key on my 7290 (OS v4.0.0.219) no longer acts as a shortcut key to lock the keyboard.

It worked wonderfully up untill a couple of days ago. The key itself works fine ( i can type as many Ks as I'd like), but at the home screen, it will not lock the unit.

I didn't realize how accustomed to that convenient shortcut until i lost the ability.

The CAPS lock is not on, and I'm not using any 3rd-party software that uses or hacks the OS to suit its needs (where i may have re-assigned the key unknowingly).

I know the key is still responding. If i hold the key down long enough, it asks if I want to assign a speed-dial number to the letter.

I have powered off, done the three-finger salute restart, and still bupkiss. I am not going to re-initialize the device - yet.

Any thoughts?

TIA.

dooxer