First keystone sometimes missed
In the last week or so I've noticed that the first keystroke in a window or search box will be missed if it hasn't been used in a while. It has twice just in typing to here. Is anyone else having this problem?
I'm running 10.11.1 El Capitan on a Late 2013 27-inch iMac, 3.5 GHz Intel Core i7, 8 GB DDR3.
I'm using a wired Apple keyboard that came with the iMac, it is connected to its own USB port on the iMac.