What do do about "Index is out of date" ($2F02) or "Blob has been modified" ($3302)

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Question:

I got an error message "Blob has been modified" - what can I do?

Answer:

This means that a table has become corrupted. Here are the most likely reasons that can cause this to happen:

One ore more workstations may not have set LOCAL SHARE to TRUE. ALL multi-user applications MUST CHANGE the local share to TRUE – otherwise your data files may become corrupted.
Ensure that your application - when shutting down - accurately closes all files.
Ensure that the application sets the Session.PrivateDir property to a local not shared directory.
Make sure all workstations point to the same shared directory for the NET DIR setting (Session.NetFileDir).
Go in the registry and disable Opportunistic Locking on Windows NT/2000 workstations and file servers:
http://support.microsoft.com/default.aspx?scid=kb;en-us;Q296264
If any system on the network is running Windows 95 and has an older version of VREDIR.VXD (4.00.1113 or 4.00.1114) update that workstation.
Also try to set NetBEUI as all workstation's default networking protocol.

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