Both my "enter" buttons dont work, how do i create a keyboard shortcut

[carlos028]

Hi, i have a 13in macbook before the intel core duo so i have TWO enter buttons, but they both dont work now. I tried using the keyboard shortcuts under system preferences to make a shortcut to do the same thing as the enter button but no luck. I dont know what to do now. help is much appreciated

 

[Zyniker]

Do you know why the keys don't work? Have you tried cleaning the keyboard?
If there is hair, lint, or some other unwelcome substance under the keys, it could be the cause of the malfunction.

 

[carlos028]

Do you know why the keys don't work? Have you tried cleaning the keyboard?
If there is hair, lint, or some other unwelcome substance under the keys, it could be the cause of the malfunction.

I clean the keyboard monthly so idk why its happening. but its mostly my buttons on the bottom right. my laptop is almost 4 years old so i just blame it on old age