.DBC internal consistency error (Error 1550)
An internal database error has occurred.
The database is corrupt.
Try VALIDATE DATABASE to diagnose or repair the problem.
The database container index (.dcx) is corrupt or not synchronized with the database container file (.dbc), usually as a result of an abnormal system shut-down.
Rebuild the index by closing the database, deleting the index file dbc_name.DCX, and reopening the database.
If the problem is not corrected, record your recent actions while using Visual FoxPro and then call Microsoft Support.