There are several simple ways to troubleshoot a Gateway keyboard, such as rebooting the computer and cleaning dirt out of the keys. If keyboard problems persist, the laptop may have a driver problem that can be corrected by downloading and reinstalling updated drivers.
To find current drivers, locate the "Drivers and Downloads" page on the Gateway website. Find the make and model of the laptop to troubleshoot, and browse the available drivers. Download the ones related to keyboard operations, and unpack them on the computer. Restart the laptop to finish installing new drivers.
If updating the drivers does not remedy the problem, there may be a hardware issue. Taking the laptop to a repair shop can help diagnose the specific source of the problem and determine whether a repair is possible.