Find Files and Folders disappeared?

I have dealt with many strange problems with computers, but this one is new to me. How can the Find Files and Folders option disappear not only from the start menu, but appraently from the system? Not even the keyboard shortcut Start + F will work. Also the right click function on the mouse seems limited too. No longer can I right click anywhere in the system, but it does work if I right click a web page. Any suggestions out there to fix this?

This is a new system, only a few months old
Hewlett-Packard
AMD64 3200+
1gb DDR Ram