>The actual index command is: index on a+b+c tag fdsidx. The 3 fields are all characters, sizes of fields: a=9, b=3, c=7.
>
>Is there a way to find if there is a corruption? It's funny I can re-create the index tag and it works, but just leaving and coming back gives me the error.
>
>TIA,
>Jim

Just a SWAG, can you rename all 3 fields to at least 2 characters names and try again? The letters a -j are reserved words in VFP.