The batteries need to be changed. Use only new 9 volt batteries.
Check the EagleEyes system and make sure it is on and plugged in via USB. Close the program and then restart it. If problems still occur, check the USB connections and make sure they are working. If everything is in working order, reinstall the EagleEyes hardware with the Installation CD.
Center the offset sliders. Check the Gain knobs; they might be too high. Push the Auto Center buttons a couple of times. Try waiting for a few minutes while the user looks at the center of the screen. Have the user take some deep breaths and relax. You take some deep breaths and relax too.
The pointer is probably hiding in a corner and the gain is up too high. Follow the directions in the previous example.
Something somewhere is reversed. Usually, two or more of the electrode leads are reversed. Also, check the Eyes/Head setting in the EagleEyes software window.
The gain is up too high. Check the gain knobs on the EagleEyes system and the gain settings in the software. Also, movement can be smoothed out with the damping setting on the software. Also, check that all the electrodes are tight against the skin.
The gain is down too low. Check the gain knobs on the EagleEyes system and the gain settings in the software. A common setting is vertical for the knobs and 1.0 for the settings in the software. Check that all the electrodes are tight against the skin.
Make sure the EagleEyes driver program is running. Look at the EagleEyes driver window and be sure the correct Control option is checked (External Switch, Ctrl key, NumLock key, or ScrollLock key). Also check to make sure all the cables are securely attached.
Check to make sure all of the electrodes are securely attached to the user and the cables are pushed in all the way at the front of the EagleEyes system. Are the vertical and horizontal green LEDs on? Maybe the batteries need to be replaced.