Game won't respond to Keyboard

[admin]

What browser and operating system are you using?

[donalddonald]

Won't respond to keyboard at all - worked fine yesterday.

[WAPam]

I'm operating with Chrome

Fixed the problem. Completely closed the site and reopened it again.

[admin]

Hi WAPam -

What browser and operating system are you using?

[WAPam]

I have had this problem once before and discovered it was due to my tab button being accidentally used and putting the cursor in the wrong place.
I tried to cycle through all of the tab spaces this time and thought I was back to the default, but I guess not.
Have tried loading a new puzzle and that didn't work.
Mouse works to select a cell and can be directionally rotated, but letter keys aren't working. Eeeek!