Which keyboard / Mac do you have?
As Hugh mentioned above, if your keyboard has a number pad, the key above the "7" (marked "Clear") functions as NumLock in a Windows guest OS in Parallels. Try it.
If you meant that you have a keyboard that doesn't have a number pad (e.g., a Macbook, etc.), F6 serves as the NumLock key. After pressing F6, which makes the keyboard keys do double-duty as the keypad, press 6 (the "Clear" key mapping) which then toggles those keys to be the number pad rather than the arrow pad.
Last edited: May 20, 2007