I was typing an e-mail and must have hit two keys at the same time, a box appeared and disappeared before I could read it, then keyboard locked.

I exited Outlook and then, of course, could not get back in 'cos I couldn't type in my username and password.  Have tried various things, all the 'F' keys and logging into my husband's user account (keyboard works fine there) to google in the problem, but no success.

HELP!!