Try these:
1. Open the table in question, then Modify Structure. Go to the Table tab and verify that the Database is correct. Close the table.

2. Close All. Open the database exclusive then run Validate Database Recover. This will tell if there are invalid table links.

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>I edited the CursorSource property as described in MS KB article 229779. It doesn't solve the problem, though the error message is a little different. After I changed the CursorSource from "table1" to "..\data\table1" (or the full path) by editing scx file, the new error says that it cannot find table1 in the dbc.