There was probably a browser update or something, that messes with the function keys.
I The F-keys don't work anymore. If I press F7 a message appears "Turn on caret browsing?", no matter what I press, F7, F8 and F9 don't work anymore.

Is there anything we can do about this? Our users are used to the F7/F8 to browse through the records (And so am I).