"Sharing" is missing from the File Menu

[Mif]

Any idea why this could be. I did check the "Files and Permissions" under "Get Info" and made sure Read and Write were available to all.

I just discovered that on this file (Contacts), Sharing is under the Filemaker menu, where on my clients Invoices file (and most other files), Sharing is under the file menu, yet they are both opened up in FM 10. The new question is why are they different?

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Edited February 2, 2010 by Guest
1st question answered, but now raises new question.