Belkin F1DK102P 2-port KVM Switch "scroll lock blinking" Questions

...scroll lock twice, you should notice the lights blinking on the KVM switch. If you do nothing else, the blinking stops, and nothing was switched. Apparently, in my case, I had to double click the ...

...advance! Hold down the Scroll Lock key for several seconds. The switch should beep briefly and blink. Hit either the "1" or "2" key on your keyboard to switch to the corresponding computer