LabQuest hardkeys (buttons) do not respond.

This information pertains to the original LabQuest.
If you have LabQuest 2, see LabQuest 2 FAQs and Troubleshooting

If the touch screen is working, but the buttons do not, it is possible that the top and bottom of the buttons are not completely settled together. If you "massage" the cluster of buttons with your thumbs, they should settle into place. If this does not work, we can replace the unit.