There are several threads about various kinds of loss of focus but none are quite like mine. In the last several days, the app window with the focus will spontaneously lose focus. This happens about every 10 to 15 seconds. To restore focus, I must click within the app. Then I get about 10 to 15 seconds of up time before the next loss of focus.
I thought it might be Carbonite running in the background but, I paused it and the thing still happens. Sleep is set to "never."
Does this sound familiar to anyone?