>>My client reports that is happening to their system and I haven't been able to figure it out yet. They tried scandisk and it seems it keeps happening
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>>TIA
>
>Every time I have seen this, it was because the computer that the data lives on dropped its network connection, rebooted, logged off, crashed, NIC problems, whatever.

Me too,

When this happens, very occasionnally, there's always a network problem. Last time I saw it, two workstations that had just been rebooted and that were idle had each one one table open in SrvMgr. I had to manually close these files in SrvMgr to get everything back in order.

José