Hi, thanks a million! This solved my problem too :-)
My 11 year old was playing a game on his user id and somehow the keyboard got stuck in num lock mode.
In system preferences under Universal Access preferences I found that Mouse Keys was set to off, but anyway the keys were still frozen to num lock. So I set Mouse Keys to on and then closed the window. Then I re-opened Mouse & Trackpad under Universal Access and set Mouse Keys to off and - PROBLEM WAS SOLVED!
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My 11 year old was playing a game on his user id and somehow the keyboard got stuck in num lock mode.
In system preferences under Universal Access preferences I found that Mouse Keys was set to off, but anyway the keys were still frozen to num lock. So I set Mouse Keys to on and then closed the window. Then I re-opened Mouse & Trackpad under Universal Access and set Mouse Keys to off and - PROBLEM WAS SOLVED!
Thanks so much for this great advice :-)