Worksheet_Change event not firing

Worksheet_Change event not firing

No matter what sheet I try it on, the Worksheet_Change event never seems to fire. For example, if I put some simple code in a macro and run it, it executes fine, but if I put the exact same code in the Worksheet_Change event, it never executes. If I do the exact same thing in Microsoft Excel it works fine.

What am I missing?

Jon