Certain keys don't work! Help
I have a 17'' 2.16ghz Core Duo that I got used. It works great and faster than my iMac G5, so I want to be able to use it as my main computer. However, the zero, volume up, and return key don't work... It isn't all that bad since I can just hit the enter key next to the spacebar, and manually adjust the volume, but I'm really missing the zero key... Is this a software problem, or is the keyboard itself broken? Is there a way to take it apart and check/clean it? Does anyone else have the same problem? Thanks
iMac G5 20'' (isight), Mac OS X (10.4.9)