Why do the optotypes have a ghost image around them?
You either have a defective monitor cable or you are using a monitor cable that is too long. Maximum distance for a monitor cable is between 6 and 10 feet. Anything longer than that will cause ghosting unless you use a very high quality video cable (see Question above regarding Hardware Requirements). We suggest keeping the monitor cable as short as possible. Put the computer near the screen and use a wireless keyboard. I personally have put my computer on the floor at the end of the room behind the toy box. I mounted a 17″ LCD monitor on the wall like a picture frame, ran the cables into a hole in the wall behind the monitor and down to the baseboard. The cables come out of the wall at the floor and into my computer. I use a wireless keyboard to control the computer and have no ghosting. An alternative to the wireless keyboard would be to run a long keyboard extension to the computer. This works nicely and does not cause any ghosting.
